124691246889 has 16 divisors (see below), whose sum is σ = 181384731840. Its totient is φ = 75563933760.

The previous prime is 124691246887. The next prime is 124691246923. The reversal of 124691246889 is 988642196421.

It is a happy number.

It is not a de Polignac number, because 124691246889 - 2¹ = 124691246887 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (124691246881) 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, 240267 + ... + 554175.

It is an arithmetic number, because the mean of its divisors is an integer number (11336545740).

Almost surely, 2^124691246889 is an apocalyptic number.

It is an amenable number.

124691246889 is a deficient number, since it is larger than the sum of its proper divisors (56693484951).

124691246889 is a wasteful number, since it uses less digits than its factorization.

124691246889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325960.

The product of its digits is 11943936, while the sum is 60.

The spelling of 124691246889 in words is "one hundred twenty-four billion, six hundred ninety-one million, two hundred forty-six thousand, eight hundred eighty-nine".