64250187356 has 12 divisors (see below), whose sum is σ = 112439673192. Its totient is φ = 32124566448.

The previous prime is 64250187347. The next prime is 64250187373. The reversal of 64250187356 is 65378105246.

It is a super-2 number, since 2×64250187356² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 64250187356.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 298406 + ... + 466418.

It is an arithmetic number, because the mean of its divisors is an integer number (9369972766).

Almost surely, 2^64250187356 is an apocalyptic number.

It is an amenable number.

64250187356 is a deficient number, since it is larger than the sum of its proper divisors (48189485836).

64250187356 is a wasteful number, since it uses less digits than its factorization.

64250187356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263620 (or 263618 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 47.

The spelling of 64250187356 in words is "sixty-four billion, two hundred fifty million, one hundred eighty-seven thousand, three hundred fifty-six".