7875971968 has 16 divisors (see below), whose sum is σ = 15690413160. Its totient is φ = 3937985920.

The previous prime is 7875971951. The next prime is 7875971969. The reversal of 7875971968 is 8691795787.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7875971969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30765388 + ... + 30765643.

Almost surely, 2^7875971968 is an apocalyptic number.

It is an amenable number.

7875971968 is a deficient number, since it is larger than the sum of its proper divisors (7814441192).

7875971968 is an equidigital number, since it uses as much as digits as its factorization.

7875971968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61531045 (or 61531033 counting only the distinct ones).

The product of its digits is 53343360, while the sum is 67.

The square root of 7875971968 is about 88746.6729967946. The cubic root of 7875971968 is about 1989.6104527772.

The spelling of 7875971968 in words is "seven billion, eight hundred seventy-five million, nine hundred seventy-one thousand, nine hundred sixty-eight".