1258013384056 has 128 divisors (see below), whose sum is σ = 2867673715200. Its totient is φ = 509464327680.

The previous prime is 1258013384051. The next prime is 1258013384113. The reversal of 1258013384056 is 6504833108521.

It is a super-2 number, since 2×1258013384056² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1258013383997 and 1258013384015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1258013384051) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 154032085 + ... + 154040251.

It is an arithmetic number, because the mean of its divisors is an integer number (22403700900).

Almost surely, 2^{1258013384056} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1258013384056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1433836857600).

1258013384056 is an abundant number, since it is smaller than the sum of its proper divisors (1609660331144).

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

1258013384056 is a wasteful number, since it uses less digits than its factorization.

1258013384056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12869 (or 12865 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 46.

The spelling of 1258013384056 in words is "one trillion, two hundred fifty-eight billion, thirteen million, three hundred eighty-four thousand, fifty-six".