125944591449 has 8 divisors (see below), whose sum is σ = 172464665920. Its totient is φ = 81693788976.

The previous prime is 125944591429. The next prime is 125944591457. The reversal of 125944591449 is 944195449521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 125944591449 - 2¹⁵ = 125944558681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125944591429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 567317869 + ... + 567318090.

It is an arithmetic number, because the mean of its divisors is an integer number (21558083240).

Almost surely, 2^125944591449 is an apocalyptic number.

It is an amenable number.

125944591449 is a deficient number, since it is larger than the sum of its proper divisors (46520074471).

125944591449 is a wasteful number, since it uses less digits than its factorization.

125944591449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1134635999.

The product of its digits is 9331200, while the sum is 57.

The spelling of 125944591449 in words is "one hundred twenty-five billion, nine hundred forty-four million, five hundred ninety-one thousand, four hundred forty-nine".