125392471650 has 144 divisors (see below), whose sum is σ = 342984440448. Its totient is φ = 32836608000.

The previous prime is 125392471637. The next prime is 125392471651. The reversal of 125392471650 is 56174293521.

125392471650 is a `hidden beast` number, since 12 + 539 + 2 + 47 + 1 + 65 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 125392471596 and 125392471605.

It is not an unprimeable number, because it can be changed into a prime (125392471651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 8203515 + ... + 8218785.

It is an arithmetic number, because the mean of its divisors is an integer number (2381836392).

Almost surely, 2^125392471650 is an apocalyptic number.

125392471650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 125392471650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171492220224).

125392471650 is an abundant number, since it is smaller than the sum of its proper divisors (217591968798).

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

125392471650 is a wasteful number, since it uses less digits than its factorization.

125392471650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15617 (or 15609 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 45.

The spelling of 125392471650 in words is "one hundred twenty-five billion, three hundred ninety-two million, four hundred seventy-one thousand, six hundred fifty".