373621633381679 has 2 divisors, whose sum is σ = 373621633381680. Its totient is φ = 373621633381678.

The previous prime is 373621633381651. The next prime is 373621633381699. The reversal of 373621633381679 is 976183336126373.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 373621633381679 - 2²⁸ = 373621364946223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (373621633381699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 186810816690839 + 186810816690840.

It is an arithmetic number, because the mean of its divisors is an integer number (186810816690840).

Almost surely, 2^{373621633381679} is an apocalyptic number.

373621633381679 is a deficient number, since it is larger than the sum of its proper divisors (1).

373621633381679 is an equidigital number, since it uses as much as digits as its factorization.

373621633381679 is an evil number, because the sum of its binary digits is even.

The product of its digits is 370355328, while the sum is 68.

The spelling of 373621633381679 in words is "three hundred seventy-three trillion, six hundred twenty-one billion, six hundred thirty-three million, three hundred eighty-one thousand, six hundred seventy-nine".