258638883780 has 96 divisors (see below), whose sum is σ = 766318952448. Its totient is φ = 65042454400.

The previous prime is 258638883743. The next prime is 258638883787. The reversal of 258638883780 is 87388836852.

It is not an unprimeable number, because it can be changed into a prime (258638883787) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1221876 + ... + 1417835.

It is an arithmetic number, because the mean of its divisors is an integer number (7982489088).

Almost surely, 2^258638883780 is an apocalyptic number.

258638883780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

258638883780 is an abundant number, since it is smaller than the sum of its proper divisors (507680068668).

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

258638883780 is a wasteful number, since it uses less digits than its factorization.

258638883780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2639817 (or 2639815 counting only the distinct ones).

The product of its (nonzero) digits is 123863040, while the sum is 66.

The spelling of 258638883780 in words is "two hundred fifty-eight billion, six hundred thirty-eight million, eight hundred eighty-three thousand, seven hundred eighty".