79365803401 has 2 divisors, whose sum is σ = 79365803402. Its totient is φ = 79365803400.

The previous prime is 79365803383. The next prime is 79365803411. The reversal of 79365803401 is 10430856397.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76121361801 + 3244441600 = 275901^2 + 56960^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79365803401 is a prime.

It is not a weakly prime, because it can be changed into another prime (79365803411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39682901700 + 39682901701.

It is an arithmetic number, because the mean of its divisors is an integer number (39682901701).

Almost surely, 2^79365803401 is an apocalyptic number.

It is an amenable number.

79365803401 is a deficient number, since it is larger than the sum of its proper divisors (1).

79365803401 is an equidigital number, since it uses as much as digits as its factorization.

79365803401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 544320, while the sum is 46.

The spelling of 79365803401 in words is "seventy-nine billion, three hundred sixty-five million, eight hundred three thousand, four hundred one".