26535661542 has 48 divisors (see below), whose sum is σ = 63913868928. Its totient is φ = 7901435520.

The previous prime is 26535661541. The next prime is 26535661547. The reversal of 26535661542 is 24516653562.

26535661542 is a `hidden beast` number, since 2 + 6 + 53 + 56 + 6 + 1 + 542 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26535661541) 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 23 ways as a sum of consecutive naturals, for example, 1821783 + ... + 1836290.

It is an arithmetic number, because the mean of its divisors is an integer number (1331538936).

Almost surely, 2^26535661542 is an apocalyptic number.

26535661542 is an abundant number, since it is smaller than the sum of its proper divisors (37378207386).

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

26535661542 is a wasteful number, since it uses less digits than its factorization.

26535661542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3658125 (or 3658122 counting only the distinct ones).

The product of its digits is 1296000, while the sum is 45.

The spelling of 26535661542 in words is "twenty-six billion, five hundred thirty-five million, six hundred sixty-one thousand, five hundred forty-two".