7975040672 has 12 divisors (see below), whose sum is σ = 15700861386. Its totient is φ = 3987520320.

The previous prime is 7975040659. The next prime is 7975040681. The reversal of 7975040672 is 2760405797.

It can be written as a sum of positive squares in only one way, i.e., 6948222736 + 1026817936 = 83356^2 + 32044^2 .

It is a super-3 number, since 3×7975040672³ (a number of 31 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124609979 + ... + 124610042.

Almost surely, 2^7975040672 is an apocalyptic number.

It is an amenable number.

7975040672 is a deficient number, since it is larger than the sum of its proper divisors (7725820714).

7975040672 is a wasteful number, since it uses less digits than its factorization.

7975040672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249220031 (or 249220023 counting only the distinct ones).

The product of its (nonzero) digits is 740880, while the sum is 47.

The square root of 7975040672 is about 89303.0832166505. The cubic root of 7975040672 is about 1997.9178891594.

The spelling of 7975040672 in words is "seven billion, nine hundred seventy-five million, forty thousand, six hundred seventy-two".