258243451870 has 16 divisors (see below), whose sum is σ = 470438675280. Its totient is φ = 102052833664.

The previous prime is 258243451847. The next prime is 258243451897. The reversal of 258243451870 is 78154342852.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155567515 + ... + 155569174.

It is an arithmetic number, because the mean of its divisors is an integer number (29402417205).

Almost surely, 2^258243451870 is an apocalyptic number.

258243451870 is a deficient number, since it is larger than the sum of its proper divisors (212195223410).

258243451870 is a wasteful number, since it uses less digits than its factorization.

258243451870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311136779.

The product of its (nonzero) digits is 2150400, while the sum is 49.

The spelling of 258243451870 in words is "two hundred fifty-eight billion, two hundred forty-three million, four hundred fifty-one thousand, eight hundred seventy".