420396712755 has 32 divisors (see below), whose sum is σ = 675905186880. Its totient is φ = 223124052480.

The previous prime is 420396712727. The next prime is 420396712789. The reversal of 420396712755 is 557217693024.

It is not a de Polignac number, because 420396712755 - 2⁷ = 420396712627 is a prime.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 420396712698 and 420396712707.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2497801 + ... + 2660789.

It is an arithmetic number, because the mean of its divisors is an integer number (21122037090).

Almost surely, 2^420396712755 is an apocalyptic number.

420396712755 is a deficient number, since it is larger than the sum of its proper divisors (255508474125).

420396712755 is a wasteful number, since it uses less digits than its factorization.

420396712755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163831.

The product of its (nonzero) digits is 3175200, while the sum is 51.

The spelling of 420396712755 in words is "four hundred twenty billion, three hundred ninety-six million, seven hundred twelve thousand, seven hundred fifty-five".