125836406240 has 192 divisors, whose sum is σ = 309818234880. Its totient is φ = 48262287360.

The previous prime is 125836406233. The next prime is 125836406243. The reversal of 125836406240 is 42604638521.

It is a super-2 number, since 2×125836406240² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125836406243) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 130130237 + ... + 130131203.

It is an arithmetic number, because the mean of its divisors is an integer number (1613636640).

Almost surely, 2^125836406240 is an apocalyptic number.

125836406240 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 125836406240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154909117440).

125836406240 is an abundant number, since it is smaller than the sum of its proper divisors (183981828640).

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

125836406240 is a wasteful number, since it uses less digits than its factorization.

125836406240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1345 (or 1337 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 41.

The spelling of 125836406240 in words is "one hundred twenty-five billion, eight hundred thirty-six million, four hundred six thousand, two hundred forty".