7487320988 has 12 divisors (see below), whose sum is σ = 14974642032. Its totient is φ = 3208851840.

The previous prime is 7487320979. The next prime is 7487321027. The reversal of 7487320988 is 8890237847.

7487320988 is an admirable number.

It is a super-2 number, since 2×7487320988² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133702133 + ... + 133702188.

It is an arithmetic number, because the mean of its divisors is an integer number (1247886836).

Almost surely, 2^7487320988 is an apocalyptic number.

It is an amenable number.

7487320988 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

7487320988 is a wasteful number, since it uses less digits than its factorization.

7487320988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267404332 (or 267404330 counting only the distinct ones).

The product of its (nonzero) digits is 5419008, while the sum is 56.

The square root of 7487320988 is about 86529.3071045874. The cubic root of 7487320988 is about 1956.3301616748.

The spelling of 7487320988 in words is "seven billion, four hundred eighty-seven million, three hundred twenty thousand, nine hundred eighty-eight".