18022793970 has 32 divisors (see below), whose sum is σ = 43294358592. Its totient is φ = 4801672512.

The previous prime is 18022793969. The next prime is 18022793977. The reversal of 18022793970 is 7939722081.

It is a super-2 number, since 2×18022793970² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18022793977) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 242032 + ... + 307611.

It is an arithmetic number, because the mean of its divisors is an integer number (1352948706).

Almost surely, 2^18022793970 is an apocalyptic number.

18022793970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18022793970 is an abundant number, since it is smaller than the sum of its proper divisors (25271564622).

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

18022793970 is a wasteful number, since it uses less digits than its factorization.

18022793970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550746.

The product of its (nonzero) digits is 381024, while the sum is 48.

The spelling of 18022793970 in words is "eighteen billion, twenty-two million, seven hundred ninety-three thousand, nine hundred seventy".