11894179902 has 32 divisors (see below), whose sum is σ = 25954988544. Its totient is φ = 3603734400.

The previous prime is 11894179859. The next prime is 11894179933. The reversal of 11894179902 is 20997149811.

It is a happy number.

11894179902 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×11894179902² (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 (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 642358 + ... + 660614.

It is an arithmetic number, because the mean of its divisors is an integer number (811093392).

Almost surely, 2^11894179902 is an apocalyptic number.

11894179902 is an abundant number, since it is smaller than the sum of its proper divisors (14060808642).

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

11894179902 is a wasteful number, since it uses less digits than its factorization.

11894179902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28144.

The product of its (nonzero) digits is 326592, while the sum is 51.

The spelling of 11894179902 in words is "eleven billion, eight hundred ninety-four million, one hundred seventy-nine thousand, nine hundred two".