26429412981 has 16 divisors (see below), whose sum is σ = 35549369856. Its totient is φ = 17465212416.

The previous prime is 26429412959. The next prime is 26429413019. The reversal of 26429412981 is 18921492462.

It is not a de Polignac number, because 26429412981 - 2⁷ = 26429412853 is a prime.

It is a super-2 number, since 2×26429412981² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 26429412981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26429412901) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71101 + ... + 240653.

It is an arithmetic number, because the mean of its divisors is an integer number (2221835616).

Almost surely, 2^26429412981 is an apocalyptic number.

It is an amenable number.

26429412981 is a deficient number, since it is larger than the sum of its proper divisors (9119956875).

26429412981 is a wasteful number, since it uses less digits than its factorization.

26429412981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170012.

The product of its digits is 497664, while the sum is 48.

The spelling of 26429412981 in words is "twenty-six billion, four hundred twenty-nine million, four hundred twelve thousand, nine hundred eighty-one".