26540005632012 has 48 divisors (see below), whose sum is σ = 68893755258720. Its totient is φ = 8835568554816.

The previous prime is 26540005631989. The next prime is 26540005632013. The reversal of 26540005632012 is 21023650004562.

26540005632012 is a `hidden beast` number, since 2 + 6 + 5 + 4 + 0 + 0 + 0 + 5 + 632 + 0 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (26540005632013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154080043 + ... + 154252194.

It is an arithmetic number, because the mean of its divisors is an integer number (1435286567890).

Almost surely, 2^{26540005632012} is an apocalyptic number.

It is an amenable number.

26540005632012 is an abundant number, since it is smaller than the sum of its proper divisors (42353749626708).

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

26540005632012 is a wasteful number, since it uses less digits than its factorization.

26540005632012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308333047 (or 308333039 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

Adding to 26540005632012 its reverse (21023650004562), we get a palindrome (47563655636574).

The spelling of 26540005632012 in words is "twenty-six trillion, five hundred forty billion, five million, six hundred thirty-two thousand, twelve".