72315770636108 has 6 divisors (see below), whose sum is σ = 126552598613196. Its totient is φ = 36157885318052.

The previous prime is 72315770636089. The next prime is 72315770636141. The reversal of 72315770636108 is 80163607751327.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9039471329510 + ... + 9039471329517.

It is an arithmetic number, because the mean of its divisors is an integer number (21092099768866).

Almost surely, 2^{72315770636108} is an apocalyptic number.

It is an amenable number.

72315770636108 is a deficient number, since it is larger than the sum of its proper divisors (54236827977088).

72315770636108 is a wasteful number, since it uses less digits than its factorization.

72315770636108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18078942659031 (or 18078942659029 counting only the distinct ones).

The product of its (nonzero) digits is 8890560, while the sum is 56.

The spelling of 72315770636108 in words is "seventy-two trillion, three hundred fifteen billion, seven hundred seventy million, six hundred thirty-six thousand, one hundred eight".