11438749142 has 16 divisors (see below), whose sum is σ = 17348349312. Its totient is φ = 5656099200.

The previous prime is 11438749141. The next prime is 11438749169. The reversal of 11438749142 is 24194783411.

It is a junction number, because it is equal to n+sod(n) for n = 11438749093 and 11438749102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11438749141) 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, 141518 + ... + 207134.

It is an arithmetic number, because the mean of its divisors is an integer number (1084271832).

Almost surely, 2^11438749142 is an apocalyptic number.

11438749142 is a deficient number, since it is larger than the sum of its proper divisors (5909600170).

11438749142 is a wasteful number, since it uses less digits than its factorization.

11438749142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66583.

The product of its digits is 193536, while the sum is 44.

The spelling of 11438749142 in words is "eleven billion, four hundred thirty-eight million, seven hundred forty-nine thousand, one hundred forty-two".