404897995531 has 8 divisors (see below), whose sum is σ = 407282137920. Its totient is φ = 402520815168.

The previous prime is 404897995517. The next prime is 404897995583. The reversal of 404897995531 is 135599798404.

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 404897995531 - 2²⁵ = 404864441099 is a prime.

It is a super-2 number, since 2×404897995531² (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 (404897995501) 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, 1623826 + ... + 1856503.

It is an arithmetic number, because the mean of its divisors is an integer number (50910267240).

Almost surely, 2^404897995531 is an apocalyptic number.

404897995531 is a deficient number, since it is larger than the sum of its proper divisors (2384142389).

404897995531 is a wasteful number, since it uses less digits than its factorization.

404897995531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3481013.

The product of its (nonzero) digits is 48988800, while the sum is 64.

The spelling of 404897995531 in words is "four hundred four billion, eight hundred ninety-seven million, nine hundred ninety-five thousand, five hundred thirty-one".