11427119892 has 18 divisors (see below), whose sum is σ = 28885219818. Its totient is φ = 3809039952.

The previous prime is 11427119827. The next prime is 11427119903. The reversal of 11427119892 is 29891172411.

It can be written as a sum of positive squares in only one way, i.e., 8242097796 + 3185022096 = 90786^2 + 56436^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×11427119892² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 158709963 + ... + 158710034.

Almost surely, 2^11427119892 is an apocalyptic number.

11427119892 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11427119892 is an abundant number, since it is smaller than the sum of its proper divisors (17458099926).

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

11427119892 is a wasteful number, since it uses less digits than its factorization.

11427119892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317420007 (or 317420002 counting only the distinct ones).

The product of its digits is 72576, while the sum is 45.

The spelling of 11427119892 in words is "eleven billion, four hundred twenty-seven million, one hundred nineteen thousand, eight hundred ninety-two".