1258405251258 has 32 divisors (see below), whose sum is σ = 2575984345344. Its totient is φ = 409645170432.

The previous prime is 1258405251247. The next prime is 1258405251281. The reversal of 1258405251258 is 8521525048521.

It is a super-2 number, since 2×1258405251258² (a number of 25 digits) contains 22 as substring.

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, 4753435 + ... + 5011182.

It is an arithmetic number, because the mean of its divisors is an integer number (80499510792).

Almost surely, 2^{1258405251258} is an apocalyptic number.

1258405251258 is an abundant number, since it is smaller than the sum of its proper divisors (1317579094086).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1258405251258 is a wasteful number, since it uses less digits than its factorization.

1258405251258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9765126.

The product of its (nonzero) digits is 1280000, while the sum is 48.

The spelling of 1258405251258 in words is "one trillion, two hundred fifty-eight billion, four hundred five million, two hundred fifty-one thousand, two hundred fifty-eight".