376567606721 has 2 divisors, whose sum is σ = 376567606722. Its totient is φ = 376567606720.

The previous prime is 376567606717. The next prime is 376567606757. The reversal of 376567606721 is 127606765673.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 375689314225 + 878292496 = 612935^2 + 29636^2 .

It is a cyclic number.

It is not a de Polignac number, because 376567606721 - 2² = 376567606717 is a prime.

It is not a weakly prime, because it can be changed into another prime (376567606771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 188283803360 + 188283803361.

It is an arithmetic number, because the mean of its divisors is an integer number (188283803361).

Almost surely, 2^376567606721 is an apocalyptic number.

It is an amenable number.

376567606721 is a deficient number, since it is larger than the sum of its proper divisors (1).

376567606721 is an equidigital number, since it uses as much as digits as its factorization.

376567606721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13335840, while the sum is 56.

The spelling of 376567606721 in words is "three hundred seventy-six billion, five hundred sixty-seven million, six hundred six thousand, seven hundred twenty-one".