46640640520 has 64 divisors (see below), whose sum is σ = 106061497200. Its totient is φ = 18457420800.

The previous prime is 46640640493. The next prime is 46640640593. The reversal of 46640640520 is 2504604664.

It can be written as a sum of positive squares in 8 ways, for example, as 41013540324 + 5627100196 = 202518^2 + 75014^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 46640640520.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6448266 + ... + 6455494.

Almost surely, 2^46640640520 is an apocalyptic number.

46640640520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

46640640520 is an abundant number, since it is smaller than the sum of its proper divisors (59420856680).

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

46640640520 is a wasteful number, since it uses less digits than its factorization.

46640640520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8938 (or 8934 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 37.

The spelling of 46640640520 in words is "forty-six billion, six hundred forty million, six hundred forty thousand, five hundred twenty".