38720033898 has 32 divisors (see below), whose sum is σ = 95310854016. Its totient is φ = 10211876928.

The previous prime is 38720033887. The next prime is 38720033903. The reversal of 38720033898 is 89833002783.

It is a self number, because there is not a number n which added to its sum of digits gives 38720033898.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35457361 + ... + 35458452.

It is an arithmetic number, because the mean of its divisors is an integer number (2978464188).

Almost surely, 2^38720033898 is an apocalyptic number.

38720033898 is an abundant number, since it is smaller than the sum of its proper divisors (56590820118).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38720033898 is a wasteful number, since it uses less digits than its factorization.

38720033898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70915838.

The product of its (nonzero) digits is 1741824, while the sum is 51.

The spelling of 38720033898 in words is "thirty-eight billion, seven hundred twenty million, thirty-three thousand, eight hundred ninety-eight".