125732352234640 has 80 divisors (see below), whose sum is σ = 295364378469888. Its totient is φ = 49771161681408.

The previous prime is 125732352234631. The next prime is 125732352234641. The reversal of 125732352234640 is 46432253237521.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (125732352234641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7122154 + ... + 17383606.

Almost surely, 2^{125732352234640} is an apocalyptic number.

125732352234640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 125732352234640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147682189234944).

125732352234640 is an abundant number, since it is smaller than the sum of its proper divisors (169632026235248).

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

125732352234640 is a wasteful number, since it uses less digits than its factorization.

125732352234640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10263056 (or 10263050 counting only the distinct ones).

The product of its (nonzero) digits is 7257600, while the sum is 49.

The spelling of 125732352234640 in words is "one hundred twenty-five trillion, seven hundred thirty-two billion, three hundred fifty-two million, two hundred thirty-four thousand, six hundred forty".