420269284278 has 96 divisors (see below), whose sum is σ = 936140654592. Its totient is φ = 136217088000.

The previous prime is 420269284273. The next prime is 420269284283. The reversal of 420269284278 is 872482962024.

420269284278 is a `hidden beast` number, since 4 + 202 + 6 + 9 + 2 + 8 + 427 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (420269284273) and next prime (420269284283).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420269284273) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 49749451 + ... + 49757897.

It is an arithmetic number, because the mean of its divisors is an integer number (9751465152).

Almost surely, 2^420269284278 is an apocalyptic number.

420269284278 is an abundant number, since it is smaller than the sum of its proper divisors (515871370314).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

420269284278 is a wasteful number, since it uses less digits than its factorization.

420269284278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9030 (or 9027 counting only the distinct ones).

The product of its (nonzero) digits is 6193152, while the sum is 54.

The spelling of 420269284278 in words is "four hundred twenty billion, two hundred sixty-nine million, two hundred eighty-four thousand, two hundred seventy-eight".