747997062431 has 4 divisors (see below), whose sum is σ = 766240893264. Its totient is φ = 729753231600.

The previous prime is 747997062427. The next prime is 747997062479. The reversal of 747997062431 is 134260799747.

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: 134260799747 = 2953 ⋅45465899.

It is a cyclic number.

It is not a de Polignac number, because 747997062431 - 2² = 747997062427 is a prime.

It is a super-2 number, since 2×747997062431² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (747997062331) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 9121915355 + ... + 9121915436.

It is an arithmetic number, because the mean of its divisors is an integer number (191560223316).

Almost surely, 2^747997062431 is an apocalyptic number.

747997062431 is a deficient number, since it is larger than the sum of its proper divisors (18243830833).

747997062431 is a wasteful number, since it uses less digits than its factorization.

747997062431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18243830832.

The product of its (nonzero) digits is 16003008, while the sum is 59.

The spelling of 747997062431 in words is "seven hundred forty-seven billion, nine hundred ninety-seven million, sixty-two thousand, four hundred thirty-one".