11522379642 has 16 divisors (see below), whose sum is σ = 23667591072. Its totient is φ = 3736987920.

The previous prime is 11522379619. The next prime is 11522379709. The reversal of 11522379642 is 24697322511.

It is a happy number.

It is a super-2 number, since 2×11522379642² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11522379594 and 11522379603.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25951084 + ... + 25951527.

It is an arithmetic number, because the mean of its divisors is an integer number (1479224442).

Almost surely, 2^11522379642 is an apocalyptic number.

11522379642 is an abundant number, since it is smaller than the sum of its proper divisors (12145211430).

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

11522379642 is a wasteful number, since it uses less digits than its factorization.

11522379642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51902653.

The product of its digits is 181440, while the sum is 42.

The spelling of 11522379642 in words is "eleven billion, five hundred twenty-two million, three hundred seventy-nine thousand, six hundred forty-two".