21875307150 has 24 divisors (see below), whose sum is σ = 54250762104. Its totient is φ = 5833415200.

The previous prime is 21875307133. The next prime is 21875307193. The reversal of 21875307150 is 5170357812.

It is a super-2 number, since 2×21875307150² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 21875307099 and 21875307108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72917541 + ... + 72917840.

It is an arithmetic number, because the mean of its divisors is an integer number (2260448421).

Almost surely, 2^21875307150 is an apocalyptic number.

21875307150 is an abundant number, since it is smaller than the sum of its proper divisors (32375454954).

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

21875307150 is a wasteful number, since it uses less digits than its factorization.

21875307150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145835396 (or 145835391 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 39.

The spelling of 21875307150 in words is "twenty-one billion, eight hundred seventy-five million, three hundred seven thousand, one hundred fifty".