7489628640 has 144 divisors (see below), whose sum is σ = 27524454048. Its totient is φ = 1843596288.

The previous prime is 7489628633. The next prime is 7489628683. The reversal of 7489628640 is 468269847.

7489628640 is a `hidden beast` number, since 7 + 4 + 8 + 9 + 628 + 6 + 4 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 181324 + ... + 218763.

It is an arithmetic number, because the mean of its divisors is an integer number (191142042).

Almost surely, 2^7489628640 is an apocalyptic number.

It is an amenable number.

7489628640 is an abundant number, since it is smaller than the sum of its proper divisors (20034825408).

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

7489628640 is a wasteful number, since it uses less digits than its factorization.

7489628640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400121 (or 400110 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 54.

The square root of 7489628640 is about 86542.6405883250. The cubic root of 7489628640 is about 1956.5311265456.

The spelling of 7489628640 in words is "seven billion, four hundred eighty-nine million, six hundred twenty-eight thousand, six hundred forty".