258426949694 has 16 divisors (see below), whose sum is σ = 397162679760. Its totient is φ = 126040463040.

The previous prime is 258426949679. The next prime is 258426949721. The reversal of 258426949694 is 496949624852.

258426949694 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 221672 + ... + 752324.

It is an arithmetic number, because the mean of its divisors is an integer number (24822667485).

Almost surely, 2^258426949694 is an apocalyptic number.

258426949694 is a deficient number, since it is larger than the sum of its proper divisors (138735730066).

258426949694 is a wasteful number, since it uses less digits than its factorization.

258426949694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536635.

The product of its digits is 268738560, while the sum is 68.

The spelling of 258426949694 in words is "two hundred fifty-eight billion, four hundred twenty-six million, nine hundred forty-nine thousand, six hundred ninety-four".