127249246613 has 4 divisors (see below), whose sum is σ = 129956677440. Its totient is φ = 124541815788.

The previous prime is 127249246609. The next prime is 127249246633. The reversal of 127249246613 is 316642942721.

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, and also an emirpimes, since its reverse is a distinct semiprime: 316642942721 = 7 ⋅45234706103.

It is a cyclic number.

It is not a de Polignac number, because 127249246613 - 2² = 127249246609 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47), and also a Moran number because the ratio is a prime number: 2707430779 = 127249246613 / (1 + 2 + 7 + 2 + 4 + 9 + 2 + 4 + 6 + 6 + 1 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127249246633) 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, 1353715343 + ... + 1353715436.

It is an arithmetic number, because the mean of its divisors is an integer number (32489169360).

Almost surely, 2^127249246613 is an apocalyptic number.

It is an amenable number.

127249246613 is a deficient number, since it is larger than the sum of its proper divisors (2707430827).

127249246613 is an equidigital number, since it uses as much as digits as its factorization.

127249246613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2707430826.

The product of its digits is 870912, while the sum is 47.

The spelling of 127249246613 in words is "one hundred twenty-seven billion, two hundred forty-nine million, two hundred forty-six thousand, six hundred thirteen".