26290146064 has 80 divisors (see below), whose sum is σ = 63754669440. Its totient is φ = 10224184320.

The previous prime is 26290146059. The next prime is 26290146079. The reversal of 26290146064 is 46064109262.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67117 + ... + 238924.

It is an arithmetic number, because the mean of its divisors is an integer number (796933368).

Almost surely, 2^26290146064 is an apocalyptic number.

It is an amenable number.

26290146064 is an abundant number, since it is smaller than the sum of its proper divisors (37464523376).

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

26290146064 is a wasteful number, since it uses less digits than its factorization.

26290146064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306128 (or 306122 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 40.

The spelling of 26290146064 in words is "twenty-six billion, two hundred ninety million, one hundred forty-six thousand, sixty-four".