125790921670 has 32 divisors (see below), whose sum is σ = 230334821856. Its totient is φ = 49454496000.

The previous prime is 125790921667. The next prime is 125790921671. The reversal of 125790921670 is 76129097521.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125790921671) 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 15 ways as a sum of consecutive naturals, for example, 316176 + ... + 592915.

It is an arithmetic number, because the mean of its divisors is an integer number (7197963183).

Almost surely, 2^125790921670 is an apocalyptic number.

125790921670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125790921670 is a deficient number, since it is larger than the sum of its proper divisors (104543900186).

125790921670 is a wasteful number, since it uses less digits than its factorization.

125790921670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 909336.

The product of its (nonzero) digits is 476280, while the sum is 49.

The spelling of 125790921670 in words is "one hundred twenty-five billion, seven hundred ninety million, nine hundred twenty-one thousand, six hundred seventy".