22172082078 has 8 divisors (see below), whose sum is σ = 44344164168. Its totient is φ = 7390694024.

The previous prime is 22172082061. The next prime is 22172082113. The reversal of 22172082078 is 87028027122.

It is a sphenic number, since it is the product of 3 distinct primes.

22172082078 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1847673501 + ... + 1847673512.

It is an arithmetic number, because the mean of its divisors is an integer number (5543020521).

Almost surely, 2^22172082078 is an apocalyptic number.

22172082078 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

22172082078 is a wasteful number, since it uses less digits than its factorization.

22172082078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3695347018.

The product of its (nonzero) digits is 50176, while the sum is 39.

The spelling of 22172082078 in words is "twenty-two billion, one hundred seventy-two million, eighty-two thousand, seventy-eight".