26546053506 has 64 divisors (see below), whose sum is σ = 62494156800. Its totient is φ = 7513640400.

The previous prime is 26546053487. The next prime is 26546053511. The reversal of 26546053506 is 60535064562.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 159931 + ... + 280481.

It is an arithmetic number, because the mean of its divisors is an integer number (976471200).

Almost surely, 2^26546053506 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26546053506, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31247078400).

26546053506 is an abundant number, since it is smaller than the sum of its proper divisors (35948103294).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26546053506 is a wasteful number, since it uses less digits than its factorization.

26546053506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120684 (or 120670 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 42.

The spelling of 26546053506 in words is "twenty-six billion, five hundred forty-six million, fifty-three thousand, five hundred six".