111909463906 has 8 divisors (see below), whose sum is σ = 167869529424. Its totient is φ = 55952954100.

The previous prime is 111909463901. The next prime is 111909463933. The reversal of 111909463906 is 609364909111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×111909463906² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 111909463906.

It is not an unprimeable number, because it can be changed into a prime (111909463901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 808800 + ... + 937003.

It is an arithmetic number, because the mean of its divisors is an integer number (20983691178).

Almost surely, 2^111909463906 is an apocalyptic number.

111909463906 is a deficient number, since it is larger than the sum of its proper divisors (55960065518).

111909463906 is a wasteful number, since it uses less digits than its factorization.

111909463906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1777856.

The product of its (nonzero) digits is 314928, while the sum is 49.

The spelling of 111909463906 in words is "one hundred eleven billion, nine hundred nine million, four hundred sixty-three thousand, nine hundred six".