79612578270 has 128 divisors (see below), whose sum is σ = 216434695680. Its totient is φ = 20820337920.

The previous prime is 79612578257. The next prime is 79612578293. The reversal of 79612578270 is 7287521697.

It is a happy number.

79612578270 is a `hidden beast` number, since 7 + 9 + 61 + 2 + 578 + 2 + 7 + 0 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3057205 + ... + 3083135.

It is an arithmetic number, because the mean of its divisors is an integer number (1690896060).

Almost surely, 2^79612578270 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79612578270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108217347840).

79612578270 is an abundant number, since it is smaller than the sum of its proper divisors (136822117410).

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

79612578270 is a wasteful number, since it uses less digits than its factorization.

79612578270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26167 (or 26161 counting only the distinct ones).

The product of its (nonzero) digits is 2963520, while the sum is 54.

The spelling of 79612578270 in words is "seventy-nine billion, six hundred twelve million, five hundred seventy-eight thousand, two hundred seventy".