11742581278 has 16 divisors (see below), whose sum is σ = 17755542000. Its totient is φ = 5824138752.

The previous prime is 11742581209. The next prime is 11742581287. The reversal of 11742581278 is 87218524711.

It is a super-2 number, since 2×11742581278² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 324478 + ... + 358846.

It is an arithmetic number, because the mean of its divisors is an integer number (1109721375).

Almost surely, 2^11742581278 is an apocalyptic number.

11742581278 is a deficient number, since it is larger than the sum of its proper divisors (6012960722).

11742581278 is a wasteful number, since it uses less digits than its factorization.

11742581278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35739.

The product of its digits is 250880, while the sum is 46.

The spelling of 11742581278 in words is "eleven billion, seven hundred forty-two million, five hundred eighty-one thousand, two hundred seventy-eight".