46564531021 has 16 divisors (see below), whose sum is σ = 49589003520. Its totient is φ = 43626211200.

The previous prime is 46564530959. The next prime is 46564531063. The reversal of 46564531021 is 12013546564.

It is a cyclic number.

It is not a de Polignac number, because 46564531021 - 2⁷ = 46564530893 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 (46568531021) 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, 700840 + ... + 764398.

It is an arithmetic number, because the mean of its divisors is an integer number (3099312720).

Almost surely, 2^46564531021 is an apocalyptic number.

It is an amenable number.

46564531021 is a deficient number, since it is larger than the sum of its proper divisors (3024472499).

46564531021 is a wasteful number, since it uses less digits than its factorization.

46564531021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64236.

The product of its (nonzero) digits is 86400, while the sum is 37.

The spelling of 46564531021 in words is "forty-six billion, five hundred sixty-four million, five hundred thirty-one thousand, twenty-one".