11452494781 has 16 divisors (see below), whose sum is σ = 14439172608. Its totient is φ = 8840304000.

The previous prime is 11452494773. The next prime is 11452494797. The reversal of 11452494781 is 18749425411.

It is a cyclic number.

It is not a de Polignac number, because 11452494781 - 2³ = 11452494773 is a prime.

It is a super-2 number, since 2×11452494781² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11452494721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1531045 + ... + 1538506.

It is an arithmetic number, because the mean of its divisors is an integer number (902448288).

Almost surely, 2^11452494781 is an apocalyptic number.

It is an amenable number.

11452494781 is a deficient number, since it is larger than the sum of its proper divisors (2986677827).

11452494781 is a wasteful number, since it uses less digits than its factorization.

11452494781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3069612.

The product of its digits is 322560, while the sum is 46.

The spelling of 11452494781 in words is "eleven billion, four hundred fifty-two million, four hundred ninety-four thousand, seven hundred eighty-one".