11648326878 has 32 divisors (see below), whose sum is σ = 25892006400. Its totient is φ = 3881750328.

The previous prime is 11648326861. The next prime is 11648326901. The reversal of 11648326878 is 87862384611.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 193825 + ... + 246707.

It is an arithmetic number, because the mean of its divisors is an integer number (809125200).

Almost surely, 2^11648326878 is an apocalyptic number.

11648326878 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

11648326878 is an abundant number, since it is smaller than the sum of its proper divisors (14243679522).

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

11648326878 is a wasteful number, since it uses less digits than its factorization.

11648326878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56973 (or 56967 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 54.

The spelling of 11648326878 in words is "eleven billion, six hundred forty-eight million, three hundred twenty-six thousand, eight hundred seventy-eight".