7491744706 has 4 divisors (see below), whose sum is σ = 11237617062. Its totient is φ = 3745872352.

The previous prime is 7491744679. The next prime is 7491744731. The reversal of 7491744706 is 6074471947.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6074471947 = 83 ⋅73186409.

It can be written as a sum of positive squares in only one way, i.e., 5408278681 + 2083466025 = 73541^2 + 45645^2 .

It is a super-2 number, since 2×7491744706² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 7491744706.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1872936175 + ... + 1872936178.

Almost surely, 2^7491744706 is an apocalyptic number.

7491744706 is a deficient number, since it is larger than the sum of its proper divisors (3745872356).

7491744706 is a wasteful number, since it uses less digits than its factorization.

7491744706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3745872355.

The product of its (nonzero) digits is 1185408, while the sum is 49.

The square root of 7491744706 is about 86554.8652936390. The cubic root of 7491744706 is about 1956.7153706226.

The spelling of 7491744706 in words is "seven billion, four hundred ninety-one million, seven hundred forty-four thousand, seven hundred six".