438998146081 has 8 divisors (see below), whose sum is σ = 479239891200. Its totient is φ = 398811871440.

The previous prime is 438998146061. The next prime is 438998146087. The reversal of 438998146081 is 180641899834.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 438998146081 - 2²³ = 438989757473 is a prime.

It is a super-2 number, since 2×438998146081² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (438998146087) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13851066 + ... + 13882723.

It is an arithmetic number, because the mean of its divisors is an integer number (59904986400).

Almost surely, 2^438998146081 is an apocalyptic number.

It is an amenable number.

438998146081 is a deficient number, since it is larger than the sum of its proper divisors (40241745119).

438998146081 is a wasteful number, since it uses less digits than its factorization.

438998146081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27735239.

The product of its (nonzero) digits is 11943936, while the sum is 61.

The spelling of 438998146081 in words is "four hundred thirty-eight billion, nine hundred ninety-eight million, one hundred forty-six thousand, eighty-one".