178734880072 has 32 divisors (see below), whose sum is σ = 383107245120. Its totient is φ = 76579876800.

The previous prime is 178734880063. The next prime is 178734880127. The reversal of 178734880072 is 270088437871.

It is a junction number, because it is equal to n+sod(n) for n = 178734879995 and 178734880022.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 223938 + ... + 638449.

It is an arithmetic number, because the mean of its divisors is an integer number (11972101410).

Almost surely, 2^178734880072 is an apocalyptic number.

It is an amenable number.

178734880072 is an abundant number, since it is smaller than the sum of its proper divisors (204372365048).

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

178734880072 is a wasteful number, since it uses less digits than its factorization.

178734880072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 866101 (or 866097 counting only the distinct ones).

The product of its (nonzero) digits is 4214784, while the sum is 55.

The spelling of 178734880072 in words is "one hundred seventy-eight billion, seven hundred thirty-four million, eight hundred eighty thousand, seventy-two".