11781005270 has 32 divisors (see below), whose sum is σ = 22526447328. Its totient is φ = 4420735488.

The previous prime is 11781005263. The next prime is 11781005273. The reversal of 11781005270 is 7250018711.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11781005273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60677 + ... + 165056.

It is an arithmetic number, because the mean of its divisors is an integer number (703951479).

Almost surely, 2^11781005270 is an apocalyptic number.

11781005270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11781005270 is a deficient number, since it is larger than the sum of its proper divisors (10745442058).

11781005270 is a wasteful number, since it uses less digits than its factorization.

11781005270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226064.

The product of its (nonzero) digits is 3920, while the sum is 32.

The spelling of 11781005270 in words is "eleven billion, seven hundred eighty-one million, five thousand, two hundred seventy".