258172982487 has 24 divisors (see below), whose sum is σ = 427644925344. Its totient is φ = 147023901504.

The previous prime is 258172982477. The next prime is 258172982503. The reversal of 258172982487 is 784289271852.

258172982487 is a `hidden beast` number, since 2 + 5 + 8 + 1 + 72 + 9 + 82 + 487 = 666.

It is not a de Polignac number, because 258172982487 - 2¹⁸ = 258172720343 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258172982477) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6974688 + ... + 7011605.

It is an arithmetic number, because the mean of its divisors is an integer number (17818538556).

Almost surely, 2^258172982487 is an apocalyptic number.

258172982487 is a deficient number, since it is larger than the sum of its proper divisors (169471942857).

258172982487 is a wasteful number, since it uses less digits than its factorization.

258172982487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13986599 (or 13986596 counting only the distinct ones).

The product of its digits is 36126720, while the sum is 63.

The spelling of 258172982487 in words is "two hundred fifty-eight billion, one hundred seventy-two million, nine hundred eighty-two thousand, four hundred eighty-seven".