7993251617 has 16 divisors (see below), whose sum is σ = 9006590208. Its totient is φ = 7038567360.

The previous prime is 7993251613. The next prime is 7993251647. The reversal of 7993251617 is 7161523997.

It is a cyclic number.

It is not a de Polignac number, because 7993251617 - 2² = 7993251613 is a prime.

It is a super-2 number, since 2×7993251617² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7993251613) 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 15 ways as a sum of consecutive naturals, for example, 75692 + ... + 147362.

It is an arithmetic number, because the mean of its divisors is an integer number (562911888).

Almost surely, 2^7993251617 is an apocalyptic number.

It is an amenable number.

7993251617 is a deficient number, since it is larger than the sum of its proper divisors (1013338591).

7993251617 is a wasteful number, since it uses less digits than its factorization.

7993251617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72080.

The product of its digits is 714420, while the sum is 50.

The square root of 7993251617 is about 89404.9865331906. The cubic root of 7993251617 is about 1999.4374765485.

The spelling of 7993251617 in words is "seven billion, nine hundred ninety-three million, two hundred fifty-one thousand, six hundred seventeen".