26880948820 has 48 divisors (see below), whose sum is σ = 64822968000. Its totient is φ = 9260421120.

The previous prime is 26880948793. The next prime is 26880948833. The reversal of 26880948820 is 2884908862.

It is a happy number.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (55).

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, 3211245 + ... + 3219604.

It is an arithmetic number, because the mean of its divisors is an integer number (1350478500).

Almost surely, 2^26880948820 is an apocalyptic number.

26880948820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26880948820 is an abundant number, since it is smaller than the sum of its proper divisors (37942019180).

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

26880948820 is a wasteful number, since it uses less digits than its factorization.

26880948820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6430888 (or 6430886 counting only the distinct ones).

The product of its (nonzero) digits is 3538944, while the sum is 55.

The spelling of 26880948820 in words is "twenty-six billion, eight hundred eighty million, nine hundred forty-eight thousand, eight hundred twenty".