1247850039139 has 16 divisors (see below), whose sum is σ = 1405250058240. Its totient is φ = 1097778960000.

The previous prime is 1247850039119. The next prime is 1247850039157. The reversal of 1247850039139 is 9319300587421.

It is a cyclic number.

It is not a de Polignac number, because 1247850039139 - 2¹⁵ = 1247850006371 is a prime.

It is a super-2 number, since 2×1247850039139² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1247850039119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19798027 + ... + 19860955.

It is an arithmetic number, because the mean of its divisors is an integer number (87828128640).

Almost surely, 2^{1247850039139} is an apocalyptic number.

1247850039139 is a deficient number, since it is larger than the sum of its proper divisors (157400019101).

1247850039139 is a wasteful number, since it uses less digits than its factorization.

1247850039139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121122.

The product of its (nonzero) digits is 1632960, while the sum is 52.

The spelling of 1247850039139 in words is "one trillion, two hundred forty-seven billion, eight hundred fifty million, thirty-nine thousand, one hundred thirty-nine".