125882377789 has 4 divisors (see below), whose sum is σ = 143865574624. Its totient is φ = 107899180956.

The previous prime is 125882377729. The next prime is 125882377793. The reversal of 125882377789 is 987773288521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 987773288521 = 233 ⋅4239370337.

It is not a de Polignac number, because 125882377789 - 2⁷ = 125882377661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125882377729) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8991598407 + ... + 8991598420.

It is an arithmetic number, because the mean of its divisors is an integer number (35966393656).

Almost surely, 2^125882377789 is an apocalyptic number.

It is an amenable number.

125882377789 is a deficient number, since it is larger than the sum of its proper divisors (17983196835).

125882377789 is an equidigital number, since it uses as much as digits as its factorization.

125882377789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17983196834.

The product of its digits is 94832640, while the sum is 67.

The spelling of 125882377789 in words is "one hundred twenty-five billion, eight hundred eighty-two million, three hundred seventy-seven thousand, seven hundred eighty-nine".