7938152390 has 48 divisors (see below), whose sum is σ = 16741242000. Its totient is φ = 2702048832.

The previous prime is 7938152377. The next prime is 7938152401. The reversal of 7938152390 is 932518397.

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, 9836 + ... + 126384.

It is an arithmetic number, because the mean of its divisors is an integer number (348775875).

Almost surely, 2^7938152390 is an apocalyptic number.

7938152390 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

7938152390 is an abundant number, since it is smaller than the sum of its proper divisors (8803089610).

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

7938152390 is a wasteful number, since it uses less digits than its factorization.

7938152390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116709 (or 116702 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 47.

The square root of 7938152390 is about 89096.3096317687. The cubic root of 7938152390 is about 1994.8326934693.

The spelling of 7938152390 in words is "seven billion, nine hundred thirty-eight million, one hundred fifty-two thousand, three hundred ninety".