64727715356 has 12 divisors (see below), whose sum is σ = 119936649168. Its totient is φ = 30460101312.

The previous prime is 64727715343. The next prime is 64727715427. The reversal of 64727715356 is 65351772746.

It is a junction number, because it is equal to n+sod(n) for n = 64727715298 and 64727715307.

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, 475939016 + ... + 475939151.

It is an arithmetic number, because the mean of its divisors is an integer number (9994720764).

Almost surely, 2^64727715356 is an apocalyptic number.

It is an amenable number.

64727715356 is a deficient number, since it is larger than the sum of its proper divisors (55208933812).

64727715356 is a wasteful number, since it uses less digits than its factorization.

64727715356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 951878188 (or 951878186 counting only the distinct ones).

The product of its digits is 7408800, while the sum is 53.

The spelling of 64727715356 in words is "sixty-four billion, seven hundred twenty-seven million, seven hundred fifteen thousand, three hundred fifty-six".