77799313153 has 4 divisors (see below), whose sum is σ = 80308968448. Its totient is φ = 75289657860.

The previous prime is 77799313139. The next prime is 77799313183. The reversal of 77799313153 is 35131399777.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 77799313153 - 2⁹ = 77799312641 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 77799313094 and 77799313103.

It is not an unprimeable number, because it can be changed into a prime (77799313103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1254827601 + ... + 1254827662.

It is an arithmetic number, because the mean of its divisors is an integer number (20077242112).

Almost surely, 2^77799313153 is an apocalyptic number.

It is an amenable number.

77799313153 is a deficient number, since it is larger than the sum of its proper divisors (2509655295).

77799313153 is a wasteful number, since it uses less digits than its factorization.

77799313153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2509655294.

The product of its digits is 3750705, while the sum is 55.

The spelling of 77799313153 in words is "seventy-seven billion, seven hundred ninety-nine million, three hundred thirteen thousand, one hundred fifty-three".