26294289842 has 6 divisors (see below), whose sum is σ = 39441778749. Its totient is φ = 13147030260.

The previous prime is 26294289809. The next prime is 26294289883. The reversal of 26294289842 is 24898249262.

It can be written as a sum of positive squares in 2 ways, for example, as 26034145201 + 260144641 = 161351^2 + 16129^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=114661.

It is a super-3 number, since 3×26294289842³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 171992 + ... + 286652.

Almost surely, 2^26294289842 is an apocalyptic number.

26294289842 is a deficient number, since it is larger than the sum of its proper divisors (13147488907).

26294289842 is an frugal number, since it uses more digits than its factorization.

26294289842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229324 (or 114663 counting only the distinct ones).

The product of its digits is 7962624, while the sum is 56.

The spelling of 26294289842 in words is "twenty-six billion, two hundred ninety-four million, two hundred eighty-nine thousand, eight hundred forty-two".