1249205705038 has 16 divisors (see below), whose sum is σ = 1932483041280. Its totient is φ = 605273441976.

The previous prime is 1249205705021. The next prime is 1249205705123. The reversal of 1249205705038 is 8305075029421.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57176668 + ... + 57198511.

It is an arithmetic number, because the mean of its divisors is an integer number (120780190080).

Almost surely, 2^{1249205705038} is an apocalyptic number.

1249205705038 is a deficient number, since it is larger than the sum of its proper divisors (683277336242).

1249205705038 is a wasteful number, since it uses less digits than its factorization.

1249205705038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114375351.

The product of its (nonzero) digits is 604800, while the sum is 46.

The spelling of 1249205705038 in words is "one trillion, two hundred forty-nine billion, two hundred five million, seven hundred five thousand, thirty-eight".