3974640897023 has 16 divisors (see below), whose sum is σ = 4081542889536. Its totient is φ = 3868215644160.

The previous prime is 3974640896969. The next prime is 3974640897067. The reversal of 3974640897023 is 3207980464793.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3974640897023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3974640807023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 217695911 + ... + 217714167.

It is an arithmetic number, because the mean of its divisors is an integer number (255096430596).

Almost surely, 2^{3974640897023} is an apocalyptic number.

3974640897023 is a deficient number, since it is larger than the sum of its proper divisors (106901992513).

3974640897023 is a wasteful number, since it uses less digits than its factorization.

3974640897023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30994.

The product of its (nonzero) digits is 54867456, while the sum is 62.

The spelling of 3974640897023 in words is "three trillion, nine hundred seventy-four billion, six hundred forty million, eight hundred ninety-seven thousand, twenty-three".