125891844061 has 4 divisors (see below), whose sum is σ = 125945394624. Its totient is φ = 125838293500.

The previous prime is 125891844053. The next prime is 125891844073. The reversal of 125891844061 is 160448198521.

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.

It is a cyclic number.

It is not a de Polignac number, because 125891844061 - 2³ = 125891844053 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 125891843996 and 125891844014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125891842061) 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, 26771755 + ... + 26776456.

It is an arithmetic number, because the mean of its divisors is an integer number (31486348656).

Almost surely, 2^125891844061 is an apocalyptic number.

It is an amenable number.

125891844061 is a deficient number, since it is larger than the sum of its proper divisors (53550563).

125891844061 is an equidigital number, since it uses as much as digits as its factorization.

125891844061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53550562.

The product of its (nonzero) digits is 552960, while the sum is 49.

The spelling of 125891844061 in words is "one hundred twenty-five billion, eight hundred ninety-one million, eight hundred forty-four thousand, sixty-one".