1253778832136 has 64 divisors (see below), whose sum is σ = 2571778460160. Its totient is φ = 570455424000.

The previous prime is 1253778832133. The next prime is 1253778832139. The reversal of 1253778832136 is 6312388773521.

It is an interprime number because it is at equal distance from previous prime (1253778832133) and next prime (1253778832139).

It is a super-2 number, since 2×1253778832136² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1253778832133) 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, 4463366 + ... + 4735946.

It is an arithmetic number, because the mean of its divisors is an integer number (40184038440).

Almost surely, 2^{1253778832136} is an apocalyptic number.

It is an amenable number.

1253778832136 is an abundant number, since it is smaller than the sum of its proper divisors (1317999628024).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1253778832136 is a wasteful number, since it uses less digits than its factorization.

1253778832136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273726 (or 273722 counting only the distinct ones).

The product of its digits is 10160640, while the sum is 56.

The spelling of 1253778832136 in words is "one trillion, two hundred fifty-three billion, seven hundred seventy-eight million, eight hundred thirty-two thousand, one hundred thirty-six".