474043521631 has 4 divisors (see below), whose sum is σ = 494654109552. Its totient is φ = 453432933712.

The previous prime is 474043521613. The next prime is 474043521671. The reversal of 474043521631 is 136125340474.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 136125340474 = 2 ⋅68062670237.

It is a cyclic number.

It is not a de Polignac number, because 474043521631 - 2⁷ = 474043521503 is a prime.

It is a super-2 number, since 2×474043521631² (a number of 24 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 (474043521671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10305293926 + ... + 10305293971.

It is an arithmetic number, because the mean of its divisors is an integer number (123663527388).

Almost surely, 2^474043521631 is an apocalyptic number.

474043521631 is a deficient number, since it is larger than the sum of its proper divisors (20610587921).

474043521631 is a wasteful number, since it uses less digits than its factorization.

474043521631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20610587920.

The product of its (nonzero) digits is 241920, while the sum is 40.

The spelling of 474043521631 in words is "four hundred seventy-four billion, forty-three million, five hundred twenty-one thousand, six hundred thirty-one".