258249383931 has 16 divisors (see below), whose sum is σ = 429297677568. Its totient is φ = 134155524000.

The previous prime is 258249383929. The next prime is 258249383969. The reversal of 258249383931 is 139383942852.

It is a happy number.

It is not a de Polignac number, because 258249383931 - 2¹ = 258249383929 is a prime.

It is a super-2 number, since 2×258249383931² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (258249383911) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 558981120 + ... + 558981581.

It is an arithmetic number, because the mean of its divisors is an integer number (26831104848).

Almost surely, 2^258249383931 is an apocalyptic number.

258249383931 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

258249383931 is a deficient number, since it is larger than the sum of its proper divisors (171048293637).

258249383931 is a wasteful number, since it uses less digits than its factorization.

258249383931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1117962722.

The product of its digits is 11197440, while the sum is 57.

The spelling of 258249383931 in words is "two hundred fifty-eight billion, two hundred forty-nine million, three hundred eighty-three thousand, nine hundred thirty-one".