26346066642 has 80 divisors (see below), whose sum is σ = 71437006080. Its totient is φ = 7084651392.

The previous prime is 26346066629. The next prime is 26346066667. The reversal of 26346066642 is 24666064362.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 664042 + ... + 702597.

It is an arithmetic number, because the mean of its divisors is an integer number (892962576).

Almost surely, 2^26346066642 is an apocalyptic number.

26346066642 is an abundant number, since it is smaller than the sum of its proper divisors (45090939438).

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

26346066642 is a wasteful number, since it uses less digits than its factorization.

26346066642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1366677 (or 1366668 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 45.

The spelling of 26346066642 in words is "twenty-six billion, three hundred forty-six million, sixty-six thousand, six hundred forty-two".