79687079501 has 2 divisors, whose sum is σ = 79687079502. Its totient is φ = 79687079500.

The previous prime is 79687079473. The next prime is 79687079503. The reversal of 79687079501 is 10597078697.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76356058276 + 3331021225 = 276326^2 + 57715^2 .

It is a cyclic number.

It is not a de Polignac number, because 79687079501 - 2¹⁰ = 79687078477 is a prime.

Together with 79687079503, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79687079503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39843539750 + 39843539751.

It is an arithmetic number, because the mean of its divisors is an integer number (39843539751).

Almost surely, 2^79687079501 is an apocalyptic number.

It is an amenable number.

79687079501 is a deficient number, since it is larger than the sum of its proper divisors (1).

79687079501 is an equidigital number, since it uses as much as digits as its factorization.

79687079501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6667920, while the sum is 59.

The spelling of 79687079501 in words is "seventy-nine billion, six hundred eighty-seven million, seventy-nine thousand, five hundred one".