22729951994 has 16 divisors (see below), whose sum is σ = 34515600000. Its totient is φ = 11225222784.

The previous prime is 22729951973. The next prime is 22729952023. The reversal of 22729951994 is 49915992722.

It is a Curzon number.

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, 20594 + ... + 214205.

It is an arithmetic number, because the mean of its divisors is an integer number (2157225000).

Almost surely, 2^22729951994 is an apocalyptic number.

22729951994 is a deficient number, since it is larger than the sum of its proper divisors (11785648006).

22729951994 is a wasteful number, since it uses less digits than its factorization.

22729951994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235397.

The product of its digits is 7348320, while the sum is 59.

The spelling of 22729951994 in words is "twenty-two billion, seven hundred twenty-nine million, nine hundred fifty-one thousand, nine hundred ninety-four".