79785982953 has 6 divisors (see below), whose sum is σ = 115246419834. Its totient is φ = 53190655296.

The previous prime is 79785982919. The next prime is 79785982967. The reversal of 79785982953 is 35928958797.

79785982953 is a `hidden beast` number, since 7 + 9 + 7 + 8 + 598 + 29 + 5 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 40315419369 + 39470563584 = 200787^2 + 198672^2 .

It is not a de Polignac number, because 79785982953 - 2⁸ = 79785982697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (79785982973) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4432554600 + ... + 4432554617.

It is an arithmetic number, because the mean of its divisors is an integer number (19207736639).

Almost surely, 2^79785982953 is an apocalyptic number.

It is an amenable number.

79785982953 is a deficient number, since it is larger than the sum of its proper divisors (35460436881).

79785982953 is a wasteful number, since it uses less digits than its factorization.

79785982953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8865109223 (or 8865109220 counting only the distinct ones).

The product of its digits is 342921600, while the sum is 72.

The spelling of 79785982953 in words is "seventy-nine billion, seven hundred eighty-five million, nine hundred eighty-two thousand, nine hundred fifty-three".