11177785870 has 24 divisors (see below), whose sum is σ = 21032841816. Its totient is φ = 4276716048.

The previous prime is 11177785841. The next prime is 11177785891. The reversal of 11177785870 is 7858777111.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1051212 + ... + 1061791.

It is an arithmetic number, because the mean of its divisors is an integer number (876368409).

Almost surely, 2^11177785870 is an apocalyptic number.

11177785870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11177785870 is a deficient number, since it is larger than the sum of its proper divisors (9855055946).

11177785870 is a wasteful number, since it uses less digits than its factorization.

11177785870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2113056 (or 2113033 counting only the distinct ones).

The product of its (nonzero) digits is 768320, while the sum is 52.

The spelling of 11177785870 in words is "eleven billion, one hundred seventy-seven million, seven hundred eighty-five thousand, eight hundred seventy".