7966015281 has 64 divisors (see below), whose sum is σ = 13800230400. Its totient is φ = 4447623168.

The previous prime is 7966015279. The next prime is 7966015283. The reversal of 7966015281 is 1825106697.

It is an interprime number because it is at equal distance from previous prime (7966015279) and next prime (7966015283).

It is not a de Polignac number, because 7966015281 - 2¹ = 7966015279 is a prime.

It is a super-2 number, since 2×7966015281² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7966015283) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1501225 + ... + 1506521.

It is an arithmetic number, because the mean of its divisors is an integer number (215628600).

Almost surely, 2^7966015281 is an apocalyptic number.

It is an amenable number.

7966015281 is a deficient number, since it is larger than the sum of its proper divisors (5834215119).

7966015281 is a wasteful number, since it uses less digits than its factorization.

7966015281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5495 (or 5489 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 45.

The square root of 7966015281 is about 89252.5365521899. The cubic root of 7966015281 is about 1997.1639203103.

The spelling of 7966015281 in words is "seven billion, nine hundred sixty-six million, fifteen thousand, two hundred eighty-one".