26406562828 has 24 divisors (see below), whose sum is σ = 48970968480. Its totient is φ = 12437066880.

The previous prime is 26406562813. The next prime is 26406562829. The reversal of 26406562828 is 82826560462.

It is a super-2 number, since 2×26406562828² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (26406562829) 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, 2771376 + ... + 2780887.

It is an arithmetic number, because the mean of its divisors is an integer number (2040457020).

Almost surely, 2^26406562828 is an apocalyptic number.

It is an amenable number.

26406562828 is a deficient number, since it is larger than the sum of its proper divisors (22564405652).

26406562828 is a wasteful number, since it uses less digits than its factorization.

26406562828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5552337 (or 5552335 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 49.

The spelling of 26406562828 in words is "twenty-six billion, four hundred six million, five hundred sixty-two thousand, eight hundred twenty-eight".