375779096621 has 2 divisors, whose sum is σ = 375779096622. Its totient is φ = 375779096620.

The previous prime is 375779096617. The next prime is 375779096657. The reversal of 375779096621 is 126690977573.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 375174625225 + 604471396 = 612515^2 + 24586^2 .

It is a cyclic number.

It is not a de Polignac number, because 375779096621 - 2² = 375779096617 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (375779096681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 187889548310 + 187889548311.

It is an arithmetic number, because the mean of its divisors is an integer number (187889548311).

Almost surely, 2^375779096621 is an apocalyptic number.

It is an amenable number.

375779096621 is a deficient number, since it is larger than the sum of its proper divisors (1).

375779096621 is an equidigital number, since it uses as much as digits as its factorization.

375779096621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30005640, while the sum is 62.

The spelling of 375779096621 in words is "three hundred seventy-five billion, seven hundred seventy-nine million, ninety-six thousand, six hundred twenty-one".