125794909999 has 16 divisors (see below), whose sum is σ = 143462214144. Its totient is φ = 109184565600.

The previous prime is 125794909969. The next prime is 125794910027. The reversal of 125794909999 is 999909497521.

It is not a de Polignac number, because 125794909999 - 2⁵ = 125794909967 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 (125794909969) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 322659 + ... + 596404.

It is an arithmetic number, because the mean of its divisors is an integer number (8966388384).

Almost surely, 2^125794909999 is an apocalyptic number.

125794909999 is a deficient number, since it is larger than the sum of its proper divisors (17667304145).

125794909999 is a wasteful number, since it uses less digits than its factorization.

125794909999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 919638.

The product of its (nonzero) digits is 148803480, while the sum is 73.

The spelling of 125794909999 in words is "one hundred twenty-five billion, seven hundred ninety-four million, nine hundred nine thousand, nine hundred ninety-nine".