38720772805672 has 32 divisors (see below), whose sum is σ = 74678807047680. Its totient is φ = 18811138832640.

The previous prime is 38720772805657. The next prime is 38720772805717. The reversal of 38720772805672 is 27650827702783.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 294594993 + ... + 294726400.

It is an arithmetic number, because the mean of its divisors is an integer number (2333712720240).

Almost surely, 2^{38720772805672} is an apocalyptic number.

It is an amenable number.

38720772805672 is a deficient number, since it is larger than the sum of its proper divisors (35958034242008).

38720772805672 is a wasteful number, since it uses less digits than its factorization.

38720772805672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 589321633 (or 589321629 counting only the distinct ones).

The product of its (nonzero) digits is 110638080, while the sum is 64.

The spelling of 38720772805672 in words is "thirty-eight trillion, seven hundred twenty billion, seven hundred seventy-two million, eight hundred five thousand, six hundred seventy-two".