37900640856563 has 2 divisors, whose sum is σ = 37900640856564. Its totient is φ = 37900640856562.

The previous prime is 37900640856517. The next prime is 37900640856593. The reversal of 37900640856563 is 36565804600973.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (36565804600973) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 37900640856563 - 2⁸ = 37900640856307 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 37900640856496 and 37900640856505.

It is not a weakly prime, because it can be changed into another prime (37900640856593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18950320428281 + 18950320428282.

It is an arithmetic number, because the mean of its divisors is an integer number (18950320428282).

Almost surely, 2^{37900640856563} is an apocalyptic number.

37900640856563 is a deficient number, since it is larger than the sum of its proper divisors (1).

37900640856563 is an equidigital number, since it uses as much as digits as its factorization.

37900640856563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 97977600, while the sum is 62.

The spelling of 37900640856563 in words is "thirty-seven trillion, nine hundred billion, six hundred forty million, eight hundred fifty-six thousand, five hundred sixty-three".