1253793542885 has 32 divisors (see below), whose sum is σ = 1653118346880. Its totient is φ = 907219830528.

The previous prime is 1253793542879. The next prime is 1253793542957. The reversal of 1253793542885 is 5882453973521.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1253793542885 - 2²⁴ = 1253776765669 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 644879 + ... + 1709811.

It is an arithmetic number, because the mean of its divisors is an integer number (51659948340).

Almost surely, 2^{1253793542885} is an apocalyptic number.

It is an amenable number.

1253793542885 is a deficient number, since it is larger than the sum of its proper divisors (399324803995).

1253793542885 is a wasteful number, since it uses less digits than its factorization.

1253793542885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1065317.

The product of its digits is 72576000, while the sum is 62.

The spelling of 1253793542885 in words is "one trillion, two hundred fifty-three billion, seven hundred ninety-three million, five hundred forty-two thousand, eight hundred eighty-five".