438155400076801 has 16 divisors (see below), whose sum is σ = 497368182359808. Its totient is φ = 382492506448000.

The previous prime is 438155400076769. The next prime is 438155400076883. The reversal of 438155400076801 is 108670004551834.

It is a cyclic number.

It is not a de Polignac number, because 438155400076801 - 2⁵ = 438155400076769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (438155400071801) 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, 7995217300 + ... + 7995272101.

It is an arithmetic number, because the mean of its divisors is an integer number (31085511397488).

Almost surely, 2^{438155400076801} is an apocalyptic number.

It is an amenable number.

438155400076801 is a deficient number, since it is larger than the sum of its proper divisors (59212782283007).

438155400076801 is a wasteful number, since it uses less digits than its factorization.

438155400076801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15990489512.

The product of its (nonzero) digits is 3225600, while the sum is 52.

The spelling of 438155400076801 in words is "four hundred thirty-eight trillion, one hundred fifty-five billion, four hundred million, seventy-six thousand, eight hundred one".