258797959791860 has 24 divisors (see below), whose sum is σ = 543478036147200. Its totient is φ = 103518741900704.

The previous prime is 258797959791859. The next prime is 258797959791863. The reversal of 258797959791860 is 68197959797852.

It is a self number, because there is not a number n which added to its sum of digits gives 258797959791860.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258797959791863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22804424 + ... + 32212383.

It is an arithmetic number, because the mean of its divisors is an integer number (22644918172800).

Almost surely, 2^{258797959791860} is an apocalyptic number.

258797959791860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

258797959791860 is an abundant number, since it is smaller than the sum of its proper divisors (284680076355340).

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

258797959791860 is a wasteful number, since it uses less digits than its factorization.

258797959791860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55252015 (or 55252013 counting only the distinct ones).

The product of its (nonzero) digits is 43208121600, while the sum is 92.

The spelling of 258797959791860 in words is "two hundred fifty-eight trillion, seven hundred ninety-seven billion, nine hundred fifty-nine million, seven hundred ninety-one thousand, eight hundred sixty".