258878221392 has 240 divisors, whose sum is σ = 785124748800. Its totient is φ = 73286728704.

The previous prime is 258878221337. The next prime is 258878221487. The reversal of 258878221392 is 293122878852.

It is a super-2 number, since 2×258878221392² (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 47 ways as a sum of consecutive naturals, for example, 142005793 + ... + 142007615.

It is an arithmetic number, because the mean of its divisors is an integer number (3271353120).

Almost surely, 2^258878221392 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 258878221392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (392562374400).

258878221392 is an abundant number, since it is smaller than the sum of its proper divisors (526246527408).

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

258878221392 is a wasteful number, since it uses less digits than its factorization.

258878221392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2370 (or 2357 counting only the distinct ones).

The product of its digits is 7741440, while the sum is 57.

The spelling of 258878221392 in words is "two hundred fifty-eight billion, eight hundred seventy-eight million, two hundred twenty-one thousand, three hundred ninety-two".