258040073989 has 4 divisors (see below), whose sum is σ = 258082710156. Its totient is φ = 257997437824.

The previous prime is 258040073987. The next prime is 258040074031. The reversal of 258040073989 is 989370040852.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 36521121025 + 221518952964 = 191105^2 + 470658^2 .

It is a cyclic number.

It is not a de Polignac number, because 258040073989 - 2¹ = 258040073987 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258040073987) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21309004 + ... + 21321109.

It is an arithmetic number, because the mean of its divisors is an integer number (64520677539).

Almost surely, 2^258040073989 is an apocalyptic number.

It is an amenable number.

258040073989 is a deficient number, since it is larger than the sum of its proper divisors (42636167).

258040073989 is an equidigital number, since it uses as much as digits as its factorization.

258040073989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42636166.

The product of its (nonzero) digits is 4354560, while the sum is 55.

The spelling of 258040073989 in words is "two hundred fifty-eight billion, forty million, seventy-three thousand, nine hundred eighty-nine".