400727065755 has 16 divisors (see below), whose sum is σ = 641226823200. Its totient is φ = 213699929088.

The previous prime is 400727065721. The next prime is 400727065759. The reversal of 400727065755 is 557560727004.

It is not a de Polignac number, because 400727065755 - 2¹¹ = 400727063707 is a prime.

It is a super-2 number, since 2×400727065755² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (400727065759) 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, 1166230 + ... + 1470219.

It is an arithmetic number, because the mean of its divisors is an integer number (40076676450).

Almost surely, 2^400727065755 is an apocalyptic number.

400727065755 is a deficient number, since it is larger than the sum of its proper divisors (240499757445).

400727065755 is a wasteful number, since it uses less digits than its factorization.

400727065755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2646590.

The product of its (nonzero) digits is 2058000, while the sum is 48.

The spelling of 400727065755 in words is "four hundred billion, seven hundred twenty-seven million, sixty-five thousand, seven hundred fifty-five".