38690841957 has 8 divisors (see below), whose sum is σ = 54302936160. Its totient is φ = 24436321200.

The previous prime is 38690841953. The next prime is 38690841971. The reversal of 38690841957 is 75914809683.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 38690841957 - 2² = 38690841953 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 38690841957.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38690841953) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 339393294 + ... + 339393407.

It is an arithmetic number, because the mean of its divisors is an integer number (6787867020).

Almost surely, 2^38690841957 is an apocalyptic number.

It is an amenable number.

38690841957 is a deficient number, since it is larger than the sum of its proper divisors (15612094203).

38690841957 is a wasteful number, since it uses less digits than its factorization.

38690841957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678786723.

The product of its (nonzero) digits is 13063680, while the sum is 60.

The spelling of 38690841957 in words is "thirty-eight billion, six hundred ninety million, eight hundred forty-one thousand, nine hundred fifty-seven".