37896157813 has 2 divisors, whose sum is σ = 37896157814. Its totient is φ = 37896157812.

The previous prime is 37896157729. The next prime is 37896157861. The reversal of 37896157813 is 31875169873.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36581152644 + 1315005169 = 191262^2 + 36263^2 .

It is a cyclic number.

It is not a de Polignac number, because 37896157813 - 2¹⁷ = 37896026741 is a prime.

It is a super-2 number, since 2×37896157813² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (37896257813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18948078906 + 18948078907.

It is an arithmetic number, because the mean of its divisors is an integer number (18948078907).

Almost surely, 2^37896157813 is an apocalyptic number.

It is an amenable number.

37896157813 is a deficient number, since it is larger than the sum of its proper divisors (1).

37896157813 is an equidigital number, since it uses as much as digits as its factorization.

37896157813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7620480, while the sum is 58.

The spelling of 37896157813 in words is "thirty-seven billion, eight hundred ninety-six million, one hundred fifty-seven thousand, eight hundred thirteen".