405727538672 has 10 divisors (see below), whose sum is σ = 786097106208. Its totient is φ = 202863769328.

The previous prime is 405727538659. The next prime is 405727538693. The reversal of 405727538672 is 276835727504.

It is a super-2 number, since 2×405727538672² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12678985568 + ... + 12678985599.

Almost surely, 2^405727538672 is an apocalyptic number.

It is an amenable number.

405727538672 is a deficient number, since it is larger than the sum of its proper divisors (380369567536).

405727538672 is a wasteful number, since it uses less digits than its factorization.

405727538672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25357971175 (or 25357971169 counting only the distinct ones).

The product of its (nonzero) digits is 19756800, while the sum is 56.

The spelling of 405727538672 in words is "four hundred five billion, seven hundred twenty-seven million, five hundred thirty-eight thousand, six hundred seventy-two".