79655201894 has 4 divisors (see below), whose sum is σ = 119482802844. Its totient is φ = 39827600946.

The previous prime is 79655201867. The next prime is 79655201897. The reversal of 79655201894 is 49810255697.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79655201897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19913800472 + ... + 19913800475.

It is an arithmetic number, because the mean of its divisors is an integer number (29870700711).

Almost surely, 2^79655201894 is an apocalyptic number.

79655201894 is a deficient number, since it is larger than the sum of its proper divisors (39827600950).

79655201894 is a wasteful number, since it uses less digits than its factorization.

79655201894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39827600949.

The product of its (nonzero) digits is 5443200, while the sum is 56.

The spelling of 79655201894 in words is "seventy-nine billion, six hundred fifty-five million, two hundred one thousand, eight hundred ninety-four".