11893751142 has 64 divisors (see below), whose sum is σ = 29322639360. Its totient is φ = 3131915904.

The previous prime is 11893751141. The next prime is 11893751159. The reversal of 11893751142 is 24115739811.

It is a super-2 number, since 2×11893751142² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 11893751094 and 11893751103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11893751141) 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, 339859 + ... + 373217.

It is an arithmetic number, because the mean of its divisors is an integer number (458166240).

Almost surely, 2^11893751142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11893751142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14661319680).

11893751142 is an abundant number, since it is smaller than the sum of its proper divisors (17428888218).

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

11893751142 is a wasteful number, since it uses less digits than its factorization.

11893751142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34037.

The product of its digits is 60480, while the sum is 42.

The spelling of 11893751142 in words is "eleven billion, eight hundred ninety-three million, seven hundred fifty-one thousand, one hundred forty-two".