7938039375 has 90 divisors (see below), whose sum is σ = 16411390424. Its totient is φ = 3620736000.

The previous prime is 7938039371. The next prime is 7938039457. The reversal of 7938039375 is 5739308397.

It is a happy number.

It is not a de Polignac number, because 7938039375 - 2² = 7938039371 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7938039371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 89 ways as a sum of consecutive naturals, for example, 17679151 + ... + 17679599.

Almost surely, 2^7938039375 is an apocalyptic number.

7938039375 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

7938039375 is an abundant number, since it is smaller than the sum of its proper divisors (8473351049).

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

7938039375 is an frugal number, since it uses more digits than its factorization.

7938039375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 931 (or 464 counting only the distinct ones).

The product of its (nonzero) digits is 4286520, while the sum is 54.

The square root of 7938039375 is about 89095.6754001001. The cubic root of 7938039375 is about 1994.8232266532.

The spelling of 7938039375 in words is "seven billion, nine hundred thirty-eight million, thirty-nine thousand, three hundred seventy-five".