401637113777743 has 16 divisors (see below), whose sum is σ = 416051181734400. Its totient is φ = 387531542613600.

The previous prime is 401637113777729. The next prime is 401637113777807. The reversal of 401637113777743 is 347777311736104.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-401637113777743 is a prime.

It is a super-2 number, since 2×401637113777743² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (61).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401637113777143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 232141705 + ... + 233865442.

It is an arithmetic number, because the mean of its divisors is an integer number (26003198858400).

Almost surely, 2^{401637113777743} is an apocalyptic number.

401637113777743 is a deficient number, since it is larger than the sum of its proper divisors (14414067956657).

401637113777743 is a wasteful number, since it uses less digits than its factorization.

401637113777743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466007478.

The product of its (nonzero) digits is 43563744, while the sum is 61.

The spelling of 401637113777743 in words is "four hundred one trillion, six hundred thirty-seven billion, one hundred thirteen million, seven hundred seventy-seven thousand, seven hundred forty-three".