7984551408 has 40 divisors (see below), whose sum is σ = 20654989008. Its totient is φ = 2657874432.

The previous prime is 7984551397. The next prime is 7984551427. The reversal of 7984551408 is 8041554897.

It is a super-2 number, since 2×7984551408² (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 7 ways as a sum of consecutive naturals, for example, 78285 + ... + 148652.

Almost surely, 2^7984551408 is an apocalyptic number.

It is an amenable number.

7984551408 is an abundant number, since it is smaller than the sum of its proper divisors (12670437600).

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

7984551408 is a wasteful number, since it uses less digits than its factorization.

7984551408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227681 (or 227675 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 51.

The square root of 7984551408 is about 89356.3171130055. The cubic root of 7984551408 is about 1998.7117877661.

The spelling of 7984551408 in words is "seven billion, nine hundred eighty-four million, five hundred fifty-one thousand, four hundred eight".