21425150124 has 72 divisors (see below), whose sum is σ = 61938938880. Its totient is φ = 6117113952.

The previous prime is 21425150119. The next prime is 21425150161. The reversal of 21425150124 is 42105152412.

It is a happy number.

21425150124 is a `hidden beast` number, since 2 + 142 + 515 + 0 + 1 + 2 + 4 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 333087 + ... + 392169.

It is an arithmetic number, because the mean of its divisors is an integer number (860263040).

Almost surely, 2^21425150124 is an apocalyptic number.

It is an amenable number.

21425150124 is an abundant number, since it is smaller than the sum of its proper divisors (40513788756).

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

21425150124 is a wasteful number, since it uses less digits than its factorization.

21425150124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60539 (or 60534 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The spelling of 21425150124 in words is "twenty-one billion, four hundred twenty-five million, one hundred fifty thousand, one hundred twenty-four".