79905463848 has 320 divisors, whose sum is σ = 269444736000. Its totient is φ = 22091771520.

The previous prime is 79905463819. The next prime is 79905463849. The reversal of 79905463848 is 84836450997.

79905463848 is a `hidden beast` number, since 7 + 9 + 9 + 0 + 546 + 3 + 84 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (79905463849) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 6884386 + ... + 6895982.

It is an arithmetic number, because the mean of its divisors is an integer number (842014800).

Almost surely, 2^79905463848 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79905463848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134722368000).

79905463848 is an abundant number, since it is smaller than the sum of its proper divisors (189539272152).

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

79905463848 is a wasteful number, since it uses less digits than its factorization.

79905463848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11667 (or 11640 counting only the distinct ones).

The product of its (nonzero) digits is 52254720, while the sum is 63.

The spelling of 79905463848 in words is "seventy-nine billion, nine hundred five million, four hundred sixty-three thousand, eight hundred forty-eight".