11721078354 has 32 divisors (see below), whose sum is σ = 23661566784. Its totient is φ = 3870619200.

The previous prime is 11721078311. The next prime is 11721078367. The reversal of 11721078354 is 45387012711.

It is a happy number.

11721078354 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 273804 + ... + 313704.

It is an arithmetic number, because the mean of its divisors is an integer number (739423962).

Almost surely, 2^11721078354 is an apocalyptic number.

11721078354 is an abundant number, since it is smaller than the sum of its proper divisors (11940488430).

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

11721078354 is a wasteful number, since it uses less digits than its factorization.

11721078354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40362.

The product of its (nonzero) digits is 47040, while the sum is 39.

The spelling of 11721078354 in words is "eleven billion, seven hundred twenty-one million, seventy-eight thousand, three hundred fifty-four".