26661895628 has 6 divisors (see below), whose sum is σ = 46658317356. Its totient is φ = 13330947812.

The previous prime is 26661895621. The next prime is 26661895657. The reversal of 26661895628 is 82659816662.

It is not an unprimeable number, because it can be changed into a prime (26661895621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3332736950 + ... + 3332736957.

It is an arithmetic number, because the mean of its divisors is an integer number (7776386226).

Almost surely, 2^26661895628 is an apocalyptic number.

It is an amenable number.

26661895628 is a deficient number, since it is larger than the sum of its proper divisors (19996421728).

26661895628 is a wasteful number, since it uses less digits than its factorization.

26661895628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6665473911 (or 6665473909 counting only the distinct ones).

The product of its digits is 14929920, while the sum is 59.

The spelling of 26661895628 in words is "twenty-six billion, six hundred sixty-one million, eight hundred ninety-five thousand, six hundred twenty-eight".