401937398377 has 2 divisors, whose sum is σ = 401937398378. Its totient is φ = 401937398376.

The previous prime is 401937398353. The next prime is 401937398383. The reversal of 401937398377 is 773893739104.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 345607597456 + 56329800921 = 587884^2 + 237339^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-401937398377 is a prime.

It is not a weakly prime, because it can be changed into another prime (401937398777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200968699188 + 200968699189.

It is an arithmetic number, because the mean of its divisors is an integer number (200968699189).

Almost surely, 2^401937398377 is an apocalyptic number.

It is an amenable number.

401937398377 is a deficient number, since it is larger than the sum of its proper divisors (1).

401937398377 is an equidigital number, since it uses as much as digits as its factorization.

401937398377 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24004512, while the sum is 61.

The spelling of 401937398377 in words is "four hundred one billion, nine hundred thirty-seven million, three hundred ninety-eight thousand, three hundred seventy-seven".