38402655937 has 4 divisors (see below), whose sum is σ = 40661635716. Its totient is φ = 36143676160.

The previous prime is 38402655931. The next prime is 38402655959. The reversal of 38402655937 is 73955620483.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 21338197776 + 17064458161 = 146076^2 + 130631^2 .

It is a cyclic number.

It is not a de Polignac number, because 38402655937 - 2¹⁵ = 38402623169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38402655931) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1129489864 + ... + 1129489897.

It is an arithmetic number, because the mean of its divisors is an integer number (10165408929).

Almost surely, 2^38402655937 is an apocalyptic number.

It is an amenable number.

38402655937 is a deficient number, since it is larger than the sum of its proper divisors (2258979779).

38402655937 is a wasteful number, since it uses less digits than its factorization.

38402655937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2258979778.

The product of its (nonzero) digits is 5443200, while the sum is 52.

The spelling of 38402655937 in words is "thirty-eight billion, four hundred two million, six hundred fifty-five thousand, nine hundred thirty-seven".