401237567077 has 2 divisors, whose sum is σ = 401237567078. Its totient is φ = 401237567076.

The previous prime is 401237567051. The next prime is 401237567131. The reversal of 401237567077 is 770765732104.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 223266645121 + 177970921956 = 472511^2 + 421866^2 .

It is a cyclic number.

It is not a de Polignac number, because 401237567077 - 2²⁷ = 401103349349 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 401237567077.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401237567047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200618783538 + 200618783539.

It is an arithmetic number, because the mean of its divisors is an integer number (200618783539).

Almost surely, 2^401237567077 is an apocalyptic number.

It is an amenable number.

401237567077 is a deficient number, since it is larger than the sum of its proper divisors (1).

401237567077 is an equidigital number, since it uses as much as digits as its factorization.

401237567077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728720, while the sum is 49.

The spelling of 401237567077 in words is "four hundred one billion, two hundred thirty-seven million, five hundred sixty-seven thousand, seventy-seven".