37980000857 has 2 divisors, whose sum is σ = 37980000858. Its totient is φ = 37980000856.

The previous prime is 37980000791. The next prime is 37980000869. The reversal of 37980000857 is 75800008973.

37980000857 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37956390976 + 23609881 = 194824^2 + 4859^2 .

It is a cyclic number.

It is not a de Polignac number, because 37980000857 - 2⁸ = 37980000601 is a prime.

It is not a weakly prime, because it can be changed into another prime (37980000757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18990000428 + 18990000429.

It is an arithmetic number, because the mean of its divisors is an integer number (18990000429).

Almost surely, 2^37980000857 is an apocalyptic number.

It is an amenable number.

37980000857 is a deficient number, since it is larger than the sum of its proper divisors (1).

37980000857 is an equidigital number, since it uses as much as digits as its factorization.

37980000857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 423360, while the sum is 47.

The spelling of 37980000857 in words is "thirty-seven billion, nine hundred eighty million, eight hundred fifty-seven", and thus it is an aban number.