9420256512 has 108 divisors (see below), whose sum is σ = 28758742740. Its totient is φ = 2955362304.

The previous prime is 9420256507. The next prime is 9420256583. The reversal of 9420256512 is 2156520249.

9420256512 is a `hidden beast` number, since 94 + 2 + 0 + 2 + 56 + 512 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 7283598336 + 2136658176 = 85344^2 + 46224^2 .

It is a super-2 number, since 2×9420256512² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81087 + ... + 159422.

It is an arithmetic number, because the mean of its divisors is an integer number (266284655).

Almost surely, 2^9420256512 is an apocalyptic number.

It is an amenable number.

9420256512 is an abundant number, since it is smaller than the sum of its proper divisors (19338486228).

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

9420256512 is a wasteful number, since it uses less digits than its factorization.

9420256512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240548 (or 240531 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 9420256512 is about 97058.0059139894. The cubic root of 9420256512 is about 2111.9691799910.

The spelling of 9420256512 in words is "nine billion, four hundred twenty million, two hundred fifty-six thousand, five hundred twelve".