26722248678 has 32 divisors (see below), whose sum is σ = 59424386400. Its totient is φ = 8901174528.

The previous prime is 26722248667. The next prime is 26722248697. The reversal of 26722248678 is 87684222762.

26722248678 is a `hidden beast` number, since 2 + 6 + 72 + 22 + 486 + 78 = 666.

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, 95283 + ... + 250046.

It is an arithmetic number, because the mean of its divisors is an integer number (1857012075).

Almost surely, 2^26722248678 is an apocalyptic number.

26722248678 is an abundant number, since it is smaller than the sum of its proper divisors (32702137722).

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

26722248678 is a wasteful number, since it uses less digits than its factorization.

26722248678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346773 (or 346767 counting only the distinct ones).

The product of its digits is 7225344, while the sum is 54.

The spelling of 26722248678 in words is "twenty-six billion, seven hundred twenty-two million, two hundred forty-eight thousand, six hundred seventy-eight".