38690021975 has 48 divisors (see below), whose sum is σ = 54504797184. Its totient is φ = 26988864000.

The previous prime is 38690021959. The next prime is 38690021983. The reversal of 38690021975 is 57912009683.

It is not a de Polignac number, because 38690021975 - 2⁴ = 38690021959 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 943244 + ... + 983406.

It is an arithmetic number, because the mean of its divisors is an integer number (1135516608).

Almost surely, 2^38690021975 is an apocalyptic number.

38690021975 is a deficient number, since it is larger than the sum of its proper divisors (15814775209).

38690021975 is a wasteful number, since it uses less digits than its factorization.

38690021975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40328 (or 40323 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 50.

The spelling of 38690021975 in words is "thirty-eight billion, six hundred ninety million, twenty-one thousand, nine hundred seventy-five".