1253194739999 has 16 divisors (see below), whose sum is σ = 1331430252768. Its totient is φ = 1175462387712.

The previous prime is 1253194739933. The next prime is 1253194740001. The reversal of 1253194739999 is 9999374913521.

It is not a de Polignac number, because 1253194739999 - 2²⁰ = 1253193691423 is a prime.

It is a super-2 number, since 2×1253194739999² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1253194739099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47860799 + ... + 47886975.

It is an arithmetic number, because the mean of its divisors is an integer number (83214390798).

Almost surely, 2^{1253194739999} is an apocalyptic number.

1253194739999 is a deficient number, since it is larger than the sum of its proper divisors (78235512769).

1253194739999 is a wasteful number, since it uses less digits than its factorization.

1253194739999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35674.

The product of its digits is 148803480, while the sum is 71.

The spelling of 1253194739999 in words is "one trillion, two hundred fifty-three billion, one hundred ninety-four million, seven hundred thirty-nine thousand, nine hundred ninety-nine".