38948038578 has 12 divisors (see below), whose sum is σ = 84387416958. Its totient is φ = 12982679520.

The previous prime is 38948038553. The next prime is 38948038607. The reversal of 38948038578 is 87583084983.

38948038578 is a `hidden beast` number, since 3 + 8 + 9 + 480 + 3 + 85 + 78 = 666.

It can be written as a sum of positive squares in only one way, i.e., 38342730969 + 605307609 = 195813^2 + 24603^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1081889943 + ... + 1081889978.

Almost surely, 2^38948038578 is an apocalyptic number.

38948038578 is an abundant number, since it is smaller than the sum of its proper divisors (45439378380).

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

38948038578 is a wasteful number, since it uses less digits than its factorization.

38948038578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2163779929 (or 2163779926 counting only the distinct ones).

The product of its (nonzero) digits is 46448640, while the sum is 63.

The spelling of 38948038578 in words is "thirty-eight billion, nine hundred forty-eight million, thirty-eight thousand, five hundred seventy-eight".