401233719793961 has 2 divisors, whose sum is σ = 401233719793962. Its totient is φ = 401233719793960.

The previous prime is 401233719793927. The next prime is 401233719794041. The reversal of 401233719793961 is 169397917332104.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 245410428067561 + 155823291726400 = 15665581^2 + 12482920^2 .

It is a cyclic number.

It is not a de Polignac number, because 401233719793961 - 2⁶ = 401233719793897 is a prime.

It is a super-2 number, since 2×401233719793961² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (401233719793661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200616859896980 + 200616859896981.

It is an arithmetic number, because the mean of its divisors is an integer number (200616859896981).

Almost surely, 2^{401233719793961} is an apocalyptic number.

It is an amenable number.

401233719793961 is a deficient number, since it is larger than the sum of its proper divisors (1).

401233719793961 is an equidigital number, since it uses as much as digits as its factorization.

401233719793961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46294416, while the sum is 65.

The spelling of 401233719793961 in words is "four hundred one trillion, two hundred thirty-three billion, seven hundred nineteen million, seven hundred ninety-three thousand, nine hundred sixty-one".