15451264064 has 28 divisors (see below), whose sum is σ = 31030523664. Its totient is φ = 7632549504.

The previous prime is 15451264039. The next prime is 15451264067. The reversal of 15451264064 is 46046215451.

It is a happy number.

It is a super-2 number, since 2×15451264064² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (15451264067) 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, 1449062 + ... + 1459685.

It is an arithmetic number, because the mean of its divisors is an integer number (1108232988).

Almost surely, 2^15451264064 is an apocalyptic number.

It is an amenable number.

15451264064 is an abundant number, since it is smaller than the sum of its proper divisors (15579259600).

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

15451264064 is an equidigital number, since it uses as much as digits as its factorization.

15451264064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2908842 (or 2908832 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 38.

The spelling of 15451264064 in words is "fifteen billion, four hundred fifty-one million, two hundred sixty-four thousand, sixty-four".