64802010400 has 36 divisors (see below), whose sum is σ = 158197909842. Its totient is φ = 25920803840.

The previous prime is 64802010397. The next prime is 64802010431. The reversal of 64802010400 is 401020846.

It can be written as a sum of positive squares in 3 ways, for example, as 41784265744 + 23017744656 = 204412^2 + 151716^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 40500457 + ... + 40502056.

Almost surely, 2^64802010400 is an apocalyptic number.

It is an amenable number.

64802010400 is an abundant number, since it is smaller than the sum of its proper divisors (93395899442).

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

64802010400 is a wasteful number, since it uses less digits than its factorization.

64802010400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81002533 (or 81002520 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The spelling of 64802010400 in words is "sixty-four billion, eight hundred two million, ten thousand, four hundred".