26820074940 has 24 divisors (see below), whose sum is σ = 75096210000. Its totient is φ = 7152019968.

The previous prime is 26820074933. The next prime is 26820074977. The reversal of 26820074940 is 4947002862.

It is a junction number, because it is equal to n+sod(n) for n = 26820074892 and 26820074901.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 223500565 + ... + 223500684.

It is an arithmetic number, because the mean of its divisors is an integer number (3129008750).

Almost surely, 2^26820074940 is an apocalyptic number.

26820074940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26820074940 is an abundant number, since it is smaller than the sum of its proper divisors (48276135060).

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

26820074940 is a wasteful number, since it uses less digits than its factorization.

26820074940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447001261 (or 447001259 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 42.

The spelling of 26820074940 in words is "twenty-six billion, eight hundred twenty million, seventy-four thousand, nine hundred forty".