7421860136 has 32 divisors (see below), whose sum is σ = 14781142440. Its totient is φ = 3481602048.

The previous prime is 7421860109. The next prime is 7421860169. The reversal of 7421860136 is 6310681247.

It can be written as a sum of positive squares in 4 ways, for example, as 5792123236 + 1629736900 = 76106^2 + 40370^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 7421860136.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42965 + ... + 129188.

Almost surely, 2^7421860136 is an apocalyptic number.

It is an amenable number.

7421860136 is a deficient number, since it is larger than the sum of its proper divisors (7359282304).

7421860136 is a wasteful number, since it uses less digits than its factorization.

7421860136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172493 (or 172489 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 7421860136 is about 86150.2184326888. The cubic root of 7421860136 is about 1950.6121362010.

The spelling of 7421860136 in words is "seven billion, four hundred twenty-one million, eight hundred sixty thousand, one hundred thirty-six".