38513208651 has 8 divisors (see below), whose sum is σ = 51550755024. Its totient is φ = 25575567360.

The previous prime is 38513208611. The next prime is 38513208661. The reversal of 38513208651 is 15680231583.

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

It is not a de Polignac number, because 38513208651 - 2⁷ = 38513208523 is a prime.

It is a super-2 number, since 2×38513208651² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (38513208611) 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, 24975370 + ... + 24976911.

It is an arithmetic number, because the mean of its divisors is an integer number (6443844378).

Almost surely, 2^38513208651 is an apocalyptic number.

38513208651 is a deficient number, since it is larger than the sum of its proper divisors (13037546373).

38513208651 is a wasteful number, since it uses less digits than its factorization.

38513208651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49952541.

The product of its (nonzero) digits is 172800, while the sum is 42.

The spelling of 38513208651 in words is "thirty-eight billion, five hundred thirteen million, two hundred eight thousand, six hundred fifty-one".