1261458382113 has 40 divisors (see below), whose sum is σ = 1983757538400. Its totient is φ = 796639162752.

The previous prime is 1261458382091. The next prime is 1261458382117. The reversal of 1261458382113 is 3112838541621.

1261458382113 is a `hidden beast` number, since 1 + 2 + 6 + 1 + 458 + 3 + 82 + 113 = 666.

It is not a de Polignac number, because 1261458382113 - 2⁵ = 1261458382081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1261458382117) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 21089833 + ... + 21149561.

It is an arithmetic number, because the mean of its divisors is an integer number (49593938460).

Almost surely, 2^{1261458382113} is an apocalyptic number.

It is an amenable number.

1261458382113 is a deficient number, since it is larger than the sum of its proper divisors (722299156287).

1261458382113 is a wasteful number, since it uses less digits than its factorization.

1261458382113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73483 (or 73474 counting only the distinct ones).

The product of its digits is 276480, while the sum is 45.

The spelling of 1261458382113 in words is "one trillion, two hundred sixty-one billion, four hundred fifty-eight million, three hundred eighty-two thousand, one hundred thirteen".