125134381788 has 48 divisors (see below), whose sum is σ = 319595023776. Its totient is φ = 37871688960.

The previous prime is 125134381787. The next prime is 125134381817. The reversal of 125134381788 is 887183431521.

It is a super-2 number, since 2×125134381788² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 125134381788.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125134381787) 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, 6565431 + ... + 6584462.

It is an arithmetic number, because the mean of its divisors is an integer number (6658229662).

Almost surely, 2^125134381788 is an apocalyptic number.

It is an amenable number.

125134381788 is an abundant number, since it is smaller than the sum of its proper divisors (194460641988).

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

125134381788 is a wasteful number, since it uses less digits than its factorization.

125134381788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13149974 (or 13149972 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 51.

The spelling of 125134381788 in words is "one hundred twenty-five billion, one hundred thirty-four million, three hundred eighty-one thousand, seven hundred eighty-eight".