7138091408 has 40 divisors (see below), whose sum is σ = 15829849920. Its totient is φ = 3054522240.

The previous prime is 7138091381. The next prime is 7138091419. The reversal of 7138091408 is 8041908317.

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, 25823 + ... + 122241.

It is an arithmetic number, because the mean of its divisors is an integer number (395746248).

Almost surely, 2^7138091408 is an apocalyptic number.

It is an amenable number.

7138091408 is an abundant number, since it is smaller than the sum of its proper divisors (8691758512).

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

7138091408 is a wasteful number, since it uses less digits than its factorization.

7138091408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97095 (or 97089 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 41.

The square root of 7138091408 is about 84487.2263007847. The cubic root of 7138091408 is about 1925.4283778638.

The spelling of 7138091408 in words is "seven billion, one hundred thirty-eight million, ninety-one thousand, four hundred eight".