79819953053 has 2 divisors, whose sum is σ = 79819953054. Its totient is φ = 79819953052.

The previous prime is 79819953049. The next prime is 79819953121. The reversal of 79819953053 is 35035991897.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 59945156569 + 19874796484 = 244837^2 + 140978^2 .

It is a cyclic number.

It is not a de Polignac number, because 79819953053 - 2² = 79819953049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 79819952983 and 79819953001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79819953013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39909976526 + 39909976527.

It is an arithmetic number, because the mean of its divisors is an integer number (39909976527).

Almost surely, 2^79819953053 is an apocalyptic number.

It is an amenable number.

79819953053 is a deficient number, since it is larger than the sum of its proper divisors (1).

79819953053 is an equidigital number, since it uses as much as digits as its factorization.

79819953053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9185400, while the sum is 59.

The spelling of 79819953053 in words is "seventy-nine billion, eight hundred nineteen million, nine hundred fifty-three thousand, fifty-three".