181379278079 has 12 divisors (see below), whose sum is σ = 182888203608. Its totient is φ = 179881477920.

The previous prime is 181379278063. The next prime is 181379278103. The reversal of 181379278079 is 970872973181.

It is not a de Polignac number, because 181379278079 - 2⁴ = 181379278063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (181379278039) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12212432 + ... + 12227274.

It is an arithmetic number, because the mean of its divisors is an integer number (15240683634).

Almost surely, 2^181379278079 is an apocalyptic number.

181379278079 is a deficient number, since it is larger than the sum of its proper divisors (1508925529).

181379278079 is an equidigital number, since it uses as much as digits as its factorization.

181379278079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15578 (or 15397 counting only the distinct ones).

The product of its (nonzero) digits is 10668672, while the sum is 62.

The spelling of 181379278079 in words is "one hundred eighty-one billion, three hundred seventy-nine million, two hundred seventy-eight thousand, seventy-nine".