64513404112 has 20 divisors (see below), whose sum is σ = 129026809216. Its totient is φ = 31216163040.

The previous prime is 64513404083. The next prime is 64513404113. The reversal of 64513404112 is 21140431546.

64513404112 is an admirable number.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64513404113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65033178 + ... + 65034169.

Almost surely, 2^64513404112 is an apocalyptic number.

64513404112 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

64513404112 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

64513404112 is a wasteful number, since it uses less digits than its factorization.

64513404112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130067386 (or 130067380 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

Adding to 64513404112 its reverse (21140431546), we get a palindrome (85653835658).

The spelling of 64513404112 in words is "sixty-four billion, five hundred thirteen million, four hundred four thousand, one hundred twelve".