74761916487 has 4 divisors (see below), whose sum is σ = 99682555320. Its totient is φ = 49841277656.

The previous prime is 74761916477. The next prime is 74761916527. The reversal of 74761916487 is 78461916747.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 74761916487 - 2²³ = 74753527879 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 74761916487.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74761916477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12460319412 + ... + 12460319417.

It is an arithmetic number, because the mean of its divisors is an integer number (24920638830).

Almost surely, 2^74761916487 is an apocalyptic number.

74761916487 is a deficient number, since it is larger than the sum of its proper divisors (24920638833).

74761916487 is a wasteful number, since it uses less digits than its factorization.

74761916487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24920638832.

The product of its digits is 14224896, while the sum is 60.

The spelling of 74761916487 in words is "seventy-four billion, seven hundred sixty-one million, nine hundred sixteen thousand, four hundred eighty-seven".