26215462243 has 8 divisors (see below), whose sum is σ = 26411050512. Its totient is φ = 26019935616.

The previous prime is 26215462213. The next prime is 26215462381. The reversal of 26215462243 is 34226451262.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 26215462243 - 2²¹ = 26213365091 is a prime.

It is a super-2 number, since 2×26215462243² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26215462213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1181871 + ... + 1203847.

It is an arithmetic number, because the mean of its divisors is an integer number (3301381314).

Almost surely, 2^26215462243 is an apocalyptic number.

26215462243 is a deficient number, since it is larger than the sum of its proper divisors (195588269).

26215462243 is a wasteful number, since it uses less digits than its factorization.

26215462243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30821.

The product of its digits is 138240, while the sum is 37.

The spelling of 26215462243 in words is "twenty-six billion, two hundred fifteen million, four hundred sixty-two thousand, two hundred forty-three".