11378906985 has 8 divisors (see below), whose sum is σ = 18206251200. Its totient is φ = 6068750384.

The previous prime is 11378906983. The next prime is 11378906989. The reversal of 11378906985 is 58960987311.

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

It is a cyclic number.

It is not a de Polignac number, because 11378906985 - 2¹ = 11378906983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11378906983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 379296885 + ... + 379296914.

It is an arithmetic number, because the mean of its divisors is an integer number (2275781400).

Almost surely, 2^11378906985 is an apocalyptic number.

11378906985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11378906985 is a deficient number, since it is larger than the sum of its proper divisors (6827344215).

11378906985 is an equidigital number, since it uses as much as digits as its factorization.

11378906985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 758593807.

The product of its (nonzero) digits is 3265920, while the sum is 57.

The spelling of 11378906985 in words is "eleven billion, three hundred seventy-eight million, nine hundred six thousand, nine hundred eighty-five".