37936877789849 has 2 divisors, whose sum is σ = 37936877789850. Its totient is φ = 37936877789848.

The previous prime is 37936877789827. The next prime is 37936877789857. The reversal of 37936877789849 is 94898777863973.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34226091994249 + 3710785795600 = 5850307^2 + 1926340^2 .

It is a cyclic number.

It is not a de Polignac number, because 37936877789849 - 2²⁰ = 37936876741273 is a prime.

It is not a weakly prime, because it can be changed into another prime (37936877789449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18968438894924 + 18968438894925.

It is an arithmetic number, because the mean of its divisors is an integer number (18968438894925).

Almost surely, 2^{37936877789849} is an apocalyptic number.

It is an amenable number.

37936877789849 is a deficient number, since it is larger than the sum of its proper divisors (1).

37936877789849 is an equidigital number, since it uses as much as digits as its factorization.

37936877789849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 193572384768, while the sum is 95.

The spelling of 37936877789849 in words is "thirty-seven trillion, nine hundred thirty-six billion, eight hundred seventy-seven million, seven hundred eighty-nine thousand, eight hundred forty-nine".