258876358680 has 128 divisors (see below), whose sum is σ = 809947514880. Its totient is φ = 66117980160.

The previous prime is 258876358667. The next prime is 258876358721. The reversal of 258876358680 is 86853678852.

It is a happy number.

It is a super-2 number, since 2×258876358680² (a number of 24 digits) contains 22 as substring.

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, 2127 + ... + 719553.

It is an arithmetic number, because the mean of its divisors is an integer number (6327714960).

Almost surely, 2^258876358680 is an apocalyptic number.

258876358680 is a gapful number since it is divisible by the number (20) 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 258876358680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (404973757440).

258876358680 is an abundant number, since it is smaller than the sum of its proper divisors (551071156200).

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

258876358680 is a wasteful number, since it uses less digits than its factorization.

258876358680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 717569 (or 717565 counting only the distinct ones).

The product of its (nonzero) digits is 154828800, while the sum is 66.

The spelling of 258876358680 in words is "two hundred fifty-eight billion, eight hundred seventy-six million, three hundred fifty-eight thousand, six hundred eighty".