18346974700 has 36 divisors (see below), whose sum is σ = 41185801440. Its totient is φ = 7085727040.

The previous prime is 18346974689. The next prime is 18346974703. The reversal of 18346974700 is 747964381.

It is a super-2 number, since 2×18346974700² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18346974703) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3160372 + ... + 3166171.

It is an arithmetic number, because the mean of its divisors is an integer number (1144050040).

Almost surely, 2^18346974700 is an apocalyptic number.

18346974700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18346974700 is an abundant number, since it is smaller than the sum of its proper divisors (22838826740).

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

18346974700 is a wasteful number, since it uses less digits than its factorization.

18346974700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6326586 (or 6326579 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 49.

The spelling of 18346974700 in words is "eighteen billion, three hundred forty-six million, nine hundred seventy-four thousand, seven hundred".