21860675000 has 48 divisors (see below), whose sum is σ = 51232736520. Its totient is φ = 8744260000.

The previous prime is 21860674993. The next prime is 21860675009. The reversal of 21860675000 is 57606812.

It is a super-2 number, since 2×21860675000² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21860675009) 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, 412214 + ... + 462213.

Almost surely, 2^21860675000 is an apocalyptic number.

21860675000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21860675000 is an abundant number, since it is smaller than the sum of its proper divisors (29372061520).

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

21860675000 is an frugal number, since it uses more digits than its factorization.

21860675000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 874458 (or 874434 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The spelling of 21860675000 in words is "twenty-one billion, eight hundred sixty million, six hundred seventy-five thousand".