7491426530072 has 8 divisors (see below), whose sum is σ = 14046424743900. Its totient is φ = 3745713265032.

The previous prime is 7491426530051. The next prime is 7491426530089. The reversal of 7491426530072 is 2700356241947.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×7491426530072² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7491426530072.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 468214158122 + ... + 468214158137.

Almost surely, 2^{7491426530072} is an apocalyptic number.

It is an amenable number.

7491426530072 is a deficient number, since it is larger than the sum of its proper divisors (6554998213828).

7491426530072 is a wasteful number, since it uses less digits than its factorization.

7491426530072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 936428316265 (or 936428316261 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 50.

The spelling of 7491426530072 in words is "seven trillion, four hundred ninety-one billion, four hundred twenty-six million, five hundred thirty thousand, seventy-two".