1258668653718 has 96 divisors (see below), whose sum is σ = 2942810431488. Its totient is φ = 357845040000.

The previous prime is 1258668653699. The next prime is 1258668653797. The reversal of 1258668653718 is 8173568668521.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 62032971 + ... + 62053257.

It is an arithmetic number, because the mean of its divisors is an integer number (30654275328).

Almost surely, 2^{1258668653718} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1258668653718, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1471405215744).

1258668653718 is an abundant number, since it is smaller than the sum of its proper divisors (1684141777770).

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

1258668653718 is a wasteful number, since it uses less digits than its factorization.

1258668653718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21338 (or 21331 counting only the distinct ones).

The product of its digits is 116121600, while the sum is 66.

The spelling of 1258668653718 in words is "one trillion, two hundred fifty-eight billion, six hundred sixty-eight million, six hundred fifty-three thousand, seven hundred eighteen".