7952755993 has 8 divisors (see below), whose sum is σ = 9788007488. Its totient is φ = 6292290384.

The previous prime is 7952755981. The next prime is 7952755997. The reversal of 7952755993 is 3995572597.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7952755993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7952755997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43696371 + ... + 43696552.

It is an arithmetic number, because the mean of its divisors is an integer number (1223500936).

Almost surely, 2^7952755993 is an apocalyptic number.

It is an amenable number.

7952755993 is a deficient number, since it is larger than the sum of its proper divisors (1835251495).

7952755993 is a wasteful number, since it uses less digits than its factorization.

7952755993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87392943.

The product of its digits is 26790750, while the sum is 61.

The square root of 7952755993 is about 89178.2260027637. The cubic root of 7952755993 is about 1996.0552239029.

The spelling of 7952755993 in words is "seven billion, nine hundred fifty-two million, seven hundred fifty-five thousand, nine hundred ninety-three".