22909717974 has 64 divisors (see below), whose sum is σ = 53985657600. Its totient is φ = 6389761920.

The previous prime is 22909717949. The next prime is 22909718009. The reversal of 22909717974 is 47971790922.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 259252 + ... + 336200.

It is an arithmetic number, because the mean of its divisors is an integer number (843525900).

Almost surely, 2^22909717974 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22909717974, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26992828800).

22909717974 is an abundant number, since it is smaller than the sum of its proper divisors (31075939626).

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

22909717974 is a wasteful number, since it uses less digits than its factorization.

22909717974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77325.

The product of its (nonzero) digits is 4000752, while the sum is 57.

The spelling of 22909717974 in words is "twenty-two billion, nine hundred nine million, seven hundred seventeen thousand, nine hundred seventy-four".