379863300721 has 2 divisors, whose sum is σ = 379863300722. Its totient is φ = 379863300720.

The previous prime is 379863300667. The next prime is 379863300727. The reversal of 379863300721 is 127003368973.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 204520113121 + 175343187600 = 452239^2 + 418740^2 .

It is a cyclic number.

It is not a de Polignac number, because 379863300721 - 2³⁵ = 345503562353 is a prime.

It is a super-2 number, since 2×379863300721² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (379863300727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189931650360 + 189931650361.

It is an arithmetic number, because the mean of its divisors is an integer number (189931650361).

Almost surely, 2^379863300721 is an apocalyptic number.

It is an amenable number.

379863300721 is a deficient number, since it is larger than the sum of its proper divisors (1).

379863300721 is an equidigital number, since it uses as much as digits as its factorization.

379863300721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1143072, while the sum is 49.

The spelling of 379863300721 in words is "three hundred seventy-nine billion, eight hundred sixty-three million, three hundred thousand, seven hundred twenty-one".