79846871040 has 520 divisors, whose sum is σ = 289245834240. Its totient is φ = 21069103104.

The previous prime is 79846871029. The next prime is 79846871057. The reversal of 79846871040 is 4017864897.

It is a happy number.

79846871040 is a `hidden beast` number, since 79 + 8 + 468 + 7 + 104 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 210677571 + ... + 210677949.

Almost surely, 2^79846871040 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 79846871040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144622917120).

79846871040 is an abundant number, since it is smaller than the sum of its proper divisors (209398963200).

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

79846871040 is a wasteful number, since it uses less digits than its factorization.

79846871040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547 (or 516 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 54.

The spelling of 79846871040 in words is "seventy-nine billion, eight hundred forty-six million, eight hundred seventy-one thousand, forty".