1109780667 has 6 divisors (see below), whose sum is σ = 1603016532. Its totient is φ = 739853772.

The previous prime is 1109780657. The next prime is 1109780677. The reversal of 1109780667 is 7660879011.

It is an interprime number because it is at equal distance from previous prime (1109780657) and next prime (1109780677).

It is not a de Polignac number, because 1109780667 - 2⁶ = 1109780603 is a prime.

It is a super-2 number, since 2×1109780667² = 2463226257693929778, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1109780657) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 61654473 + ... + 61654490.

It is an arithmetic number, because the mean of its divisors is an integer number (267169422).

Almost surely, 2^1109780667 is an apocalyptic number.

1109780667 is a deficient number, since it is larger than the sum of its proper divisors (493235865).

1109780667 is a wasteful number, since it uses less digits than its factorization.

1109780667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123308969 (or 123308966 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 45.

The square root of 1109780667 is about 33313.3706940622. The cubic root of 1109780667 is about 1035.3306036208.

The spelling of 1109780667 in words is "one billion, one hundred nine million, seven hundred eighty thousand, six hundred sixty-seven".