11278136896845 has 256 divisors, whose sum is σ = 23546526474240. Its totient is φ = 4481069838336.

The previous prime is 11278136896723. The next prime is 11278136896891. The reversal of 11278136896845 is 54869863187211.

It is not a de Polignac number, because 11278136896845 - 2⁷ = 11278136896717 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11278136896845.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 1152354042 + ... + 1152363828.

It is an arithmetic number, because the mean of its divisors is an integer number (91978619040).

Almost surely, 2^{11278136896845} is an apocalyptic number.

11278136896845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11278136896845 is an abundant number, since it is smaller than the sum of its proper divisors (12268389577395).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11278136896845 is a wasteful number, since it uses less digits than its factorization.

11278136896845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10564.

The product of its digits is 139345920, while the sum is 69.

The spelling of 11278136896845 in words is "eleven trillion, two hundred seventy-eight billion, one hundred thirty-six million, eight hundred ninety-six thousand, eight hundred forty-five".