258720996216879 has 48 divisors (see below), whose sum is σ = 447415079654400. Its totient is φ = 140935749933888.

The previous prime is 258720996216811. The next prime is 258720996216899. The reversal of 258720996216879 is 978612699027852.

258720996216879 is a `hidden beast` number, since 2 + 587 + 2 + 0 + 9 + 9 + 6 + 21 + 6 + 8 + 7 + 9 = 666.

258720996216879 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 258720996216879 - 2²⁹ = 258720459345967 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 258720996216798 and 258720996216807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258720996216899) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 896119849 + ... + 896408514.

It is an arithmetic number, because the mean of its divisors is an integer number (9321147492800).

Almost surely, 2^{258720996216879} is an apocalyptic number.

258720996216879 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

258720996216879 is a deficient number, since it is larger than the sum of its proper divisors (188694083437521).

258720996216879 is a wasteful number, since it uses less digits than its factorization.

258720996216879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1792528484 (or 1792528481 counting only the distinct ones).

The product of its (nonzero) digits is 3292047360, while the sum is 81.

The spelling of 258720996216879 in words is "two hundred fifty-eight trillion, seven hundred twenty billion, nine hundred ninety-six million, two hundred sixteen thousand, eight hundred seventy-nine".