11801063878 has 16 divisors (see below), whose sum is σ = 18116398080. Its totient is φ = 5762312136.

The previous prime is 11801063821. The next prime is 11801063881. The reversal of 11801063878 is 87836010811.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 843343 + ... + 857221.

It is an arithmetic number, because the mean of its divisors is an integer number (1132274880).

Almost surely, 2^11801063878 is an apocalyptic number.

11801063878 is a deficient number, since it is larger than the sum of its proper divisors (6315334202).

11801063878 is a wasteful number, since it uses less digits than its factorization.

11801063878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23811.

The product of its (nonzero) digits is 64512, while the sum is 43.

The spelling of 11801063878 in words is "eleven billion, eight hundred one million, sixty-three thousand, eight hundred seventy-eight".