749474631085656 has 128 divisors (see below), whose sum is σ = 2143047976819200. Its totient is φ = 213966440663040.

The previous prime is 749474631085573. The next prime is 749474631085657. The reversal of 749474631085656 is 656580136474947.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (749474631085657) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3812489175 + ... + 3812685753.

It is an arithmetic number, because the mean of its divisors is an integer number (16742562318900).

Almost surely, 2^{749474631085656} is an apocalyptic number.

It is an amenable number.

749474631085656 is an abundant number, since it is smaller than the sum of its proper divisors (1393573345733544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

749474631085656 is a wasteful number, since it uses less digits than its factorization.

749474631085656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214409 (or 214405 counting only the distinct ones).

The product of its (nonzero) digits is 3657830400, while the sum is 75.

The spelling of 749474631085656 in words is "seven hundred forty-nine trillion, four hundred seventy-four billion, six hundred thirty-one million, eighty-five thousand, six hundred fifty-six".