26290780047 has 24 divisors (see below), whose sum is σ = 43888309920. Its totient is φ = 14854498560.

The previous prime is 26290780037. The next prime is 26290780057. The reversal of 26290780047 is 74008709262.

It is an interprime number because it is at equal distance from previous prime (26290780037) and next prime (26290780057).

It is not a de Polignac number, because 26290780047 - 2¹¹ = 26290777999 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 26290779984 and 26290780011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26290780037) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2338854 + ... + 2350067.

It is an arithmetic number, because the mean of its divisors is an integer number (1828679580).

Almost surely, 2^26290780047 is an apocalyptic number.

26290780047 is a deficient number, since it is larger than the sum of its proper divisors (17597529873).

26290780047 is a wasteful number, since it uses less digits than its factorization.

26290780047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4689023 (or 4689020 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The spelling of 26290780047 in words is "twenty-six billion, two hundred ninety million, seven hundred eighty thousand, forty-seven".