7138947088 has 160 divisors (see below), whose sum is σ = 18096341760. Its totient is φ = 2647572480.

The previous prime is 7138947073. The next prime is 7138947091. The reversal of 7138947088 is 8807498317.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9380628 + ... + 9381388.

It is an arithmetic number, because the mean of its divisors is an integer number (113102136).

Almost surely, 2^7138947088 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7138947088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9048170880).

7138947088 is an abundant number, since it is smaller than the sum of its proper divisors (10957394672).

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

7138947088 is a wasteful number, since it uses less digits than its factorization.

7138947088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1185 (or 1179 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 55.

The square root of 7138947088 is about 84492.2901098082. The cubic root of 7138947088 is about 1925.5053118149.

The spelling of 7138947088 in words is "seven billion, one hundred thirty-eight million, nine hundred forty-seven thousand, eighty-eight".