26680029644 has 12 divisors (see below), whose sum is σ = 47171393304. Its totient is φ = 13202488704.

The previous prime is 26680029613. The next prime is 26680029697. The reversal of 26680029644 is 44692008662.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34381094 + ... + 34381869.

It is an arithmetic number, because the mean of its divisors is an integer number (3930949442).

Almost surely, 2^26680029644 is an apocalyptic number.

It is an amenable number.

26680029644 is a deficient number, since it is larger than the sum of its proper divisors (20491363660).

26680029644 is a wasteful number, since it uses less digits than its factorization.

26680029644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68763064 (or 68763062 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 47.

The spelling of 26680029644 in words is "twenty-six billion, six hundred eighty million, twenty-nine thousand, six hundred forty-four".