22194956784 has 160 divisors (see below), whose sum is σ = 76984072704. Its totient is φ = 5321456640.

The previous prime is 22194956767. The next prime is 22194956801. The reversal of 22194956784 is 48765949122.

It is an interprime number because it is at equal distance from previous prime (22194956767) and next prime (22194956801).

It is a super-2 number, since 2×22194956784² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 182919 + ... + 279014.

Almost surely, 2^22194956784 is an apocalyptic number.

22194956784 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

22194956784 is an abundant number, since it is smaller than the sum of its proper divisors (54789115920).

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

22194956784 is a wasteful number, since it uses less digits than its factorization.

22194956784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461975 (or 461969 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 57.

The spelling of 22194956784 in words is "twenty-two billion, one hundred ninety-four million, nine hundred fifty-six thousand, seven hundred eighty-four".