774040521631 has 8 divisors (see below), whose sum is σ = 833657630960. Its totient is φ = 714434202432.

The previous prime is 774040521593. The next prime is 774040521671. The reversal of 774040521631 is 136125040477.

774040521631 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 774040521631 - 2¹⁷ = 774040390559 is a prime.

It is a super-2 number, since 2×774040521631² (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 (774040521671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2548230 + ... + 2835763.

It is an arithmetic number, because the mean of its divisors is an integer number (104207203870).

Almost surely, 2^774040521631 is an apocalyptic number.

774040521631 is a deficient number, since it is larger than the sum of its proper divisors (59617109329).

774040521631 is a wasteful number, since it uses less digits than its factorization.

774040521631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5395065.

The product of its (nonzero) digits is 141120, while the sum is 40.

The spelling of 774040521631 in words is "seven hundred seventy-four billion, forty million, five hundred twenty-one thousand, six hundred thirty-one".