26878156800 has 672 divisors, whose sum is σ = 100339452864. Its totient is φ = 6291456000.

The previous prime is 26878156787. The next prime is 26878156831. The reversal of 26878156800 is 865187862.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 277094352 + ... + 277094448.

It is an arithmetic number, because the mean of its divisors is an integer number (149314662).

Almost surely, 2^26878156800 is an apocalyptic number.

26878156800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26878156800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50169726432).

26878156800 is an abundant number, since it is smaller than the sum of its proper divisors (73461296064).

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

26878156800 is a wasteful number, since it uses less digits than its factorization.

26878156800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188 (or 159 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 51.

The spelling of 26878156800 in words is "twenty-six billion, eight hundred seventy-eight million, one hundred fifty-six thousand, eight hundred".