79357142773 has 2 divisors, whose sum is σ = 79357142774. Its totient is φ = 79357142772.

The previous prime is 79357142759. The next prime is 79357142797. The reversal of 79357142773 is 37724175397.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73596636369 + 5760506404 = 271287^2 + 75898^2 .

It is a cyclic number.

It is not a de Polignac number, because 79357142773 - 2⁹ = 79357142261 is a prime.

It is a super-2 number, since 2×79357142773² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79357142743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39678571386 + 39678571387.

It is an arithmetic number, because the mean of its divisors is an integer number (39678571387).

Almost surely, 2^79357142773 is an apocalyptic number.

It is an amenable number.

79357142773 is a deficient number, since it is larger than the sum of its proper divisors (1).

79357142773 is an equidigital number, since it uses as much as digits as its factorization.

79357142773 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7779240, while the sum is 55.

The spelling of 79357142773 in words is "seventy-nine billion, three hundred fifty-seven million, one hundred forty-two thousand, seven hundred seventy-three".