26653536642 has 32 divisors (see below), whose sum is σ = 56121004800. Its totient is φ = 8415661968.

The previous prime is 26653536641. The next prime is 26653536643. The reversal of 26653536642 is 24663535662.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (26653536641) and next prime (26653536643).

It is a super-2 number, since 2×26653536642² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 26653536591 and 26653536600.

It is not an unprimeable number, because it can be changed into a prime (26653536641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1039209 + ... + 1064547.

It is an arithmetic number, because the mean of its divisors is an integer number (1753781400).

Almost surely, 2^26653536642 is an apocalyptic number.

26653536642 is an abundant number, since it is smaller than the sum of its proper divisors (29467468158).

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

26653536642 is a wasteful number, since it uses less digits than its factorization.

26653536642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34590.

The product of its digits is 4665600, while the sum is 48.

The spelling of 26653536642 in words is "twenty-six billion, six hundred fifty-three million, five hundred thirty-six thousand, six hundred forty-two".