21462434125 has 128 divisors (see below), whose sum is σ = 32095844352. Its totient is φ = 14152320000.

The previous prime is 21462434113. The next prime is 21462434129. The reversal of 21462434125 is 52143426412.

It is not a de Polignac number, because 21462434125 - 2⁷ = 21462433997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21462434129) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 131671294 + ... + 131671456.

It is an arithmetic number, because the mean of its divisors is an integer number (250748784).

Almost surely, 2^21462434125 is an apocalyptic number.

21462434125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

21462434125 is a deficient number, since it is larger than the sum of its proper divisors (10633410227).

21462434125 is a wasteful number, since it uses less digits than its factorization.

21462434125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380 (or 370 counting only the distinct ones).

The product of its digits is 46080, while the sum is 34.

The spelling of 21462434125 in words is "twenty-one billion, four hundred sixty-two million, four hundred thirty-four thousand, one hundred twenty-five".