26505123442 has 16 divisors (see below), whose sum is σ = 46903076352. Its totient is φ = 10992908160.

The previous prime is 26505123439. The next prime is 26505123461. The reversal of 26505123442 is 24432150562.

It is a junction number, because it is equal to n+sod(n) for n = 26505123398 and 26505123407.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30535423 + ... + 30536290.

It is an arithmetic number, because the mean of its divisors is an integer number (2931442272).

Almost surely, 2^26505123442 is an apocalyptic number.

26505123442 is a deficient number, since it is larger than the sum of its proper divisors (20397952910).

26505123442 is a wasteful number, since it uses less digits than its factorization.

26505123442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61071753.

The product of its (nonzero) digits is 57600, while the sum is 34.

The spelling of 26505123442 in words is "twenty-six billion, five hundred five million, one hundred twenty-three thousand, four hundred forty-two".