12400127659 has 4 divisors (see below), whose sum is σ = 12509863416. Its totient is φ = 12290391904.

The previous prime is 12400127633. The next prime is 12400127683. The reversal of 12400127659 is 95672100421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95672100421 = 17 ⋅5627770613.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12400127659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12400127629) 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, 54867709 + ... + 54867934.

It is an arithmetic number, because the mean of its divisors is an integer number (3127465854).

Almost surely, 2^12400127659 is an apocalyptic number.

12400127659 is a deficient number, since it is larger than the sum of its proper divisors (109735757).

12400127659 is a wasteful number, since it uses less digits than its factorization.

12400127659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109735756.

The product of its (nonzero) digits is 30240, while the sum is 37.

The spelling of 12400127659 in words is "twelve billion, four hundred million, one hundred twenty-seven thousand, six hundred fifty-nine".