38771185157 has 2 divisors, whose sum is σ = 38771185158. Its totient is φ = 38771185156.

The previous prime is 38771185147. The next prime is 38771185217. The reversal of 38771185157 is 75158117783.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32486818081 + 6284367076 = 180241^2 + 79274^2 .

It is a cyclic number.

It is not a de Polignac number, because 38771185157 - 2²² = 38766990853 is a prime.

It is a super-2 number, since 2×38771185157² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 38771185099 and 38771185108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38771185147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19385592578 + 19385592579.

It is an arithmetic number, because the mean of its divisors is an integer number (19385592579).

Almost surely, 2^38771185157 is an apocalyptic number.

It is an amenable number.

38771185157 is a deficient number, since it is larger than the sum of its proper divisors (1).

38771185157 is an equidigital number, since it uses as much as digits as its factorization.

38771185157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1646400, while the sum is 53.

The spelling of 38771185157 in words is "thirty-eight billion, seven hundred seventy-one million, one hundred eighty-five thousand, one hundred fifty-seven".