64815425023532 has 6 divisors (see below), whose sum is σ = 113426993791188. Its totient is φ = 32407712511764.

The previous prime is 64815425023493. The next prime is 64815425023637. The reversal of 64815425023532 is 23532052451846.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8101928127938 + ... + 8101928127945.

It is an arithmetic number, because the mean of its divisors is an integer number (18904498965198).

Almost surely, 2^{64815425023532} is an apocalyptic number.

It is an amenable number.

64815425023532 is a deficient number, since it is larger than the sum of its proper divisors (48611568767656).

64815425023532 is a wasteful number, since it uses less digits than its factorization.

64815425023532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16203856255887 (or 16203856255885 counting only the distinct ones).

The product of its (nonzero) digits is 6912000, while the sum is 50.

The spelling of 64815425023532 in words is "sixty-four trillion, eight hundred fifteen billion, four hundred twenty-five million, twenty-three thousand, five hundred thirty-two".