258326556988 has 6 divisors (see below), whose sum is σ = 452071474736. Its totient is φ = 129163278492.

The previous prime is 258326556947. The next prime is 258326556997. The reversal of 258326556988 is 889655623852.

It is a super-2 number, since 2×258326556988² (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 as a sum of consecutive naturals, namely, 32290819620 + ... + 32290819627.

Almost surely, 2^258326556988 is an apocalyptic number.

It is an amenable number.

258326556988 is a deficient number, since it is larger than the sum of its proper divisors (193744917748).

258326556988 is a wasteful number, since it uses less digits than its factorization.

258326556988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64581639251 (or 64581639249 counting only the distinct ones).

The product of its digits is 248832000, while the sum is 67.

The spelling of 258326556988 in words is "two hundred fifty-eight billion, three hundred twenty-six million, five hundred fifty-six thousand, nine hundred eighty-eight".