26979322050 has 270 divisors, whose sum is σ = 78518718993. Its totient is φ = 6868350720.

The previous prime is 26979322043. The next prime is 26979322067. The reversal of 26979322050 is 5022397962.

It is a happy number.

It can be written as a sum of positive squares in 14 ways, for example, as 5089823649 + 21889498401 = 71343^2 + 147951^2 .

It is a tau number, because it is divible by the number of its divisors (270).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=116145.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 26979321987 and 26979322005.

It is an unprimeable number.

It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 303138406 + ... + 303138494.

Almost surely, 2^26979322050 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26979322050

26979322050 is an abundant number, since it is smaller than the sum of its proper divisors (51539396943).

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

26979322050 is an equidigital number, since it uses as much as digits as its factorization.

26979322050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260 (or 128 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 45.

The spelling of 26979322050 in words is "twenty-six billion, nine hundred seventy-nine million, three hundred twenty-two thousand, fifty".