7605421128 has 40 divisors (see below), whose sum is σ = 21302223030. Its totient is φ = 2535140160.

The previous prime is 7605421127. The next prime is 7605421133. The reversal of 7605421128 is 8211245067.

7605421128 is a `hidden beast` number, since 7 + 605 + 4 + 21 + 1 + 28 = 666.

It can be written as a sum of positive squares in only one way, i.e., 7436992644 + 168428484 = 86238^2 + 12978^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 7605421092 and 7605421101.

It is not an unprimeable number, because it can be changed into a prime (7605421127) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 5867733 + ... + 5869028.

Almost surely, 2^7605421128 is an apocalyptic number.

It is an amenable number.

7605421128 is an abundant number, since it is smaller than the sum of its proper divisors (13696801902).

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

7605421128 is a wasteful number, since it uses less digits than its factorization.

7605421128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11736779 (or 11736766 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 7605421128 is about 87209.0656296695. The cubic root of 7605421128 is about 1966.5625099041.

The spelling of 7605421128 in words is "seven billion, six hundred five million, four hundred twenty-one thousand, one hundred twenty-eight".