1253868612724 has 96 divisors (see below), whose sum is σ = 2794389850112. Its totient is φ = 478892736000.

The previous prime is 1253868612691. The next prime is 1253868612779. The reversal of 1253868612724 is 4272168683521.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 4618594 + ... + 4882534.

Almost surely, 2^{1253868612724} is an apocalyptic number.

1253868612724 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1253868612724, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1397194925056).

1253868612724 is an abundant number, since it is smaller than the sum of its proper divisors (1540521237388).

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

1253868612724 is a wasteful number, since it uses less digits than its factorization.

1253868612724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264417 (or 264415 counting only the distinct ones).

The product of its digits is 7741440, while the sum is 55.

The spelling of 1253868612724 in words is "one trillion, two hundred fifty-three billion, eight hundred sixty-eight million, six hundred twelve thousand, seven hundred twenty-four".