38817647420572 has 24 divisors (see below), whose sum is σ = 68388431680800. Its totient is φ = 19278101747520.

The previous prime is 38817647420561. The next prime is 38817647420581. The reversal of 38817647420572 is 27502474671883.

It is a happy number.

It is a congruent number.

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, 24850422 + ... + 26366242.

It is an arithmetic number, because the mean of its divisors is an integer number (2849517986700).

Almost surely, 2^{38817647420572} is an apocalyptic number.

It is an amenable number.

38817647420572 is a deficient number, since it is larger than the sum of its proper divisors (29570784260228).

38817647420572 is a wasteful number, since it uses less digits than its factorization.

38817647420572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1558941 (or 1558939 counting only the distinct ones).

The product of its (nonzero) digits is 126443520, while the sum is 64.

The spelling of 38817647420572 in words is "thirty-eight trillion, eight hundred seventeen billion, six hundred forty-seven million, four hundred twenty thousand, five hundred seventy-two".