38403021157 has 2 divisors, whose sum is σ = 38403021158. Its totient is φ = 38403021156.

The previous prime is 38403021119. The next prime is 38403021169. The reversal of 38403021157 is 75112030483.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32071795396 + 6331225761 = 179086^2 + 79569^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38403021157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38403021187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19201510578 + 19201510579.

It is an arithmetic number, because the mean of its divisors is an integer number (19201510579).

Almost surely, 2^38403021157 is an apocalyptic number.

It is an amenable number.

38403021157 is a deficient number, since it is larger than the sum of its proper divisors (1).

38403021157 is an equidigital number, since it uses as much as digits as its factorization.

38403021157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 34.

The spelling of 38403021157 in words is "thirty-eight billion, four hundred three million, twenty-one thousand, one hundred fifty-seven".