1247649712393 has 32 divisors (see below), whose sum is σ = 1444729610240. Its totient is φ = 1055349388800.

The previous prime is 1247649712391. The next prime is 1247649712409. The reversal of 1247649712393 is 3932179467421.

It is a happy number.

It is not a de Polignac number, because 1247649712393 - 2¹ = 1247649712391 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1247649712391) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 458862088 + ... + 458864806.

It is an arithmetic number, because the mean of its divisors is an integer number (45147800320).

Almost surely, 2^{1247649712393} is an apocalyptic number.

It is an amenable number.

1247649712393 is a deficient number, since it is larger than the sum of its proper divisors (197079897847).

1247649712393 is a wasteful number, since it uses less digits than its factorization.

1247649712393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4517.

The product of its digits is 13716864, while the sum is 58.

The spelling of 1247649712393 in words is "one trillion, two hundred forty-seven billion, six hundred forty-nine million, seven hundred twelve thousand, three hundred ninety-three".