26260635660 has 96 divisors (see below), whose sum is σ = 85749081600. Its totient is φ = 6002426304.

The previous prime is 26260635659. The next prime is 26260635671. The reversal of 26260635660 is 6653606262.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

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 (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 617434 + ... + 658593.

It is an arithmetic number, because the mean of its divisors is an integer number (893219600).

Almost surely, 2^26260635660 is an apocalyptic number.

26260635660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26260635660 is an abundant number, since it is smaller than the sum of its proper divisors (59488445940).

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

26260635660 is a wasteful number, since it uses less digits than its factorization.

26260635660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1276060 (or 1276044 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 42.

The spelling of 26260635660 in words is "twenty-six billion, two hundred sixty million, six hundred thirty-five thousand, six hundred sixty".