11121470808678 has 24 divisors (see below), whose sum is σ = 24174000869616. Its totient is φ = 3695236815600.

The previous prime is 11121470808677. The next prime is 11121470808697. The reversal of 11121470808678 is 87680807412111.

11121470808678 is a `hidden beast` number, since 1 + 1 + 1 + 21 + 470 + 8 + 0 + 86 + 78 = 666.

It is a super-2 number, since 2×11121470808678² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11121470808673) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 993337633 + ... + 993348828.

It is an arithmetic number, because the mean of its divisors is an integer number (1007250036234).

Almost surely, 2^{11121470808678} is an apocalyptic number.

11121470808678 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

11121470808678 is an abundant number, since it is smaller than the sum of its proper divisors (13052530060938).

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

11121470808678 is a wasteful number, since it uses less digits than its factorization.

11121470808678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1986686780 (or 1986686777 counting only the distinct ones).

The product of its (nonzero) digits is 1204224, while the sum is 54.

The spelling of 11121470808678 in words is "eleven trillion, one hundred twenty-one billion, four hundred seventy million, eight hundred eight thousand, six hundred seventy-eight".