11781425892 has 96 divisors (see below), whose sum is σ = 28934535168. Its totient is φ = 3726635904.

The previous prime is 11781425863. The next prime is 11781425897. The reversal of 11781425892 is 29852418711.

It is a happy number.

It is a super-3 number, since 3×11781425892³ (a number of 31 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (11781425897) 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, 7240383 + ... + 7242009.

It is an arithmetic number, because the mean of its divisors is an integer number (301401408).

Almost surely, 2^11781425892 is an apocalyptic number.

11781425892 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11781425892 is an abundant number, since it is smaller than the sum of its proper divisors (17153109276).

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

11781425892 is a wasteful number, since it uses less digits than its factorization.

11781425892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2065 (or 2063 counting only the distinct ones).

The product of its digits is 322560, while the sum is 48.

The spelling of 11781425892 in words is "eleven billion, seven hundred eighty-one million, four hundred twenty-five thousand, eight hundred ninety-two".