439129654454 has 16 divisors (see below), whose sum is σ = 659056124160. Its totient is φ = 219444320640.

The previous prime is 439129654451. The next prime is 439129654489. The reversal of 439129654454 is 454456921934.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 439129654454.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (439129654451) 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, 37085867 + ... + 37097705.

It is an arithmetic number, because the mean of its divisors is an integer number (41191007760).

Almost surely, 2^439129654454 is an apocalyptic number.

439129654454 is a deficient number, since it is larger than the sum of its proper divisors (219926469706).

439129654454 is a wasteful number, since it uses less digits than its factorization.

439129654454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20455.

The product of its digits is 18662400, while the sum is 56.

The spelling of 439129654454 in words is "four hundred thirty-nine billion, one hundred twenty-nine million, six hundred fifty-four thousand, four hundred fifty-four".