258995987630 has 32 divisors (see below), whose sum is σ = 491389977600. Its totient is φ = 98013700512.

The previous prime is 258995987597. The next prime is 258995987659. The reversal of 258995987630 is 36789599852.

It is a super-2 number, since 2×258995987630² (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 in 15 ways as a sum of consecutive naturals, for example, 776150 + ... + 1058489.

It is an arithmetic number, because the mean of its divisors is an integer number (15355936800).

Almost surely, 2^258995987630 is an apocalyptic number.

258995987630 is a deficient number, since it is larger than the sum of its proper divisors (232393989970).

258995987630 is a wasteful number, since it uses less digits than its factorization.

258995987630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1835408.

The product of its (nonzero) digits is 293932800, while the sum is 71.

The spelling of 258995987630 in words is "two hundred fifty-eight billion, nine hundred ninety-five million, nine hundred eighty-seven thousand, six hundred thirty".