7800117993 has 24 divisors (see below), whose sum is σ = 11793364128. Its totient is φ = 5151462624.

The previous prime is 7800117977. The next prime is 7800118019. The reversal of 7800117993 is 3997110087.

It is not a de Polignac number, because 7800117993 - 2⁴ = 7800117977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7800117893) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 123996 + ... + 175997.

It is an arithmetic number, because the mean of its divisors is an integer number (491390172).

Almost surely, 2^7800117993 is an apocalyptic number.

It is an amenable number.

7800117993 is a deficient number, since it is larger than the sum of its proper divisors (3993246135).

7800117993 is a wasteful number, since it uses less digits than its factorization.

7800117993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300115 (or 300103 counting only the distinct ones).

The product of its (nonzero) digits is 95256, while the sum is 45.

The square root of 7800117993 is about 88318.2766645727. The cubic root of 7800117993 is about 1983.2024827513.

The spelling of 7800117993 in words is "seven billion, eight hundred million, one hundred seventeen thousand, nine hundred ninety-three".