7890422472 has 48 divisors (see below), whose sum is σ = 21374006940. Its totient is φ = 2629634688.

The previous prime is 7890422461. The next prime is 7890422503. The reversal of 7890422472 is 2742240987.

7890422472 is a `hidden beast` number, since 78 + 90 + 4 + 22 + 472 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 7780298436 + 110124036 = 88206^2 + 10494^2 .

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, 662038 + ... + 673850.

Almost surely, 2^7890422472 is an apocalyptic number.

7890422472 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

7890422472 is an abundant number, since it is smaller than the sum of its proper divisors (13483584468).

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

7890422472 is a wasteful number, since it uses less digits than its factorization.

7890422472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21102 (or 21095 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 45.

The square root of 7890422472 is about 88828.0500292560. The cubic root of 7890422472 is about 1990.8265273642.

The spelling of 7890422472 in words is "seven billion, eight hundred ninety million, four hundred twenty-two thousand, four hundred seventy-two".