401256452420367 has 64 divisors (see below), whose sum is σ = 562363305984000. Its totient is φ = 254002843721088.

The previous prime is 401256452420347. The next prime is 401256452420389. The reversal of 401256452420367 is 763024254652104.

It is not a de Polignac number, because 401256452420367 - 2²⁷ = 401256318202639 is a prime.

It is a super-2 number, since 2×401256452420367² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401256452420347) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 19144817634 + ... + 19144838592.

It is an arithmetic number, because the mean of its divisors is an integer number (8786926656000).

Almost surely, 2^{401256452420367} is an apocalyptic number.

401256452420367 is a deficient number, since it is larger than the sum of its proper divisors (161106853563633).

401256452420367 is a wasteful number, since it uses less digits than its factorization.

401256452420367 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23780.

The product of its (nonzero) digits is 9676800, while the sum is 51.

The spelling of 401256452420367 in words is "four hundred one trillion, two hundred fifty-six billion, four hundred fifty-two million, four hundred twenty thousand, three hundred sixty-seven".