1248792841581 has 8 divisors (see below), whose sum is σ = 1718768642304. Its totient is φ = 805672800960.

The previous prime is 1248792841507. The next prime is 1248792841601. The reversal of 1248792841581 is 1851482978421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1248792841581 - 2⁷ = 1248792841453 is a prime.

It is a super-2 number, since 2×1248792841581² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1248792841381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6713939916 + ... + 6713940101.

It is an arithmetic number, because the mean of its divisors is an integer number (214846080288).

Almost surely, 2^{1248792841581} is an apocalyptic number.

It is an amenable number.

1248792841581 is a deficient number, since it is larger than the sum of its proper divisors (469975800723).

1248792841581 is a wasteful number, since it uses less digits than its factorization.

1248792841581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13427880051.

The product of its digits is 10321920, while the sum is 60.

The spelling of 1248792841581 in words is "one trillion, two hundred forty-eight billion, seven hundred ninety-two million, eight hundred forty-one thousand, five hundred eighty-one".