79773458742 has 32 divisors (see below), whose sum is σ = 177286815360. Its totient is φ = 26589283560.

The previous prime is 79773458741. The next prime is 79773458753. The reversal of 79773458742 is 24785437797.

79773458742 is a `hidden beast` number, since 7 + 9 + 7 + 7 + 3 + 4 + 587 + 42 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 79773458742.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79773458741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 875173 + ... + 962015.

It is an arithmetic number, because the mean of its divisors is an integer number (5540212980).

Almost surely, 2^79773458742 is an apocalyptic number.

79773458742 is an abundant number, since it is smaller than the sum of its proper divisors (97513356618).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

79773458742 is a wasteful number, since it uses less digits than its factorization.

79773458742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103865 (or 103859 counting only the distinct ones).

The product of its digits is 82978560, while the sum is 63.

The spelling of 79773458742 in words is "seventy-nine billion, seven hundred seventy-three million, four hundred fifty-eight thousand, seven hundred forty-two".