26161412503 has 16 divisors (see below), whose sum is σ = 26649907200. Its totient is φ = 25677591520.

The previous prime is 26161412479. The next prime is 26161412513. The reversal of 26161412503 is 30521416162.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26161412503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26161412513) 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, 10095738 + ... + 10098328.

It is an arithmetic number, because the mean of its divisors is an integer number (1665619200).

Almost surely, 2^26161412503 is an apocalyptic number.

26161412503 is a deficient number, since it is larger than the sum of its proper divisors (488494697).

26161412503 is a wasteful number, since it uses less digits than its factorization.

26161412503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3422.

The product of its (nonzero) digits is 8640, while the sum is 31.

Adding to 26161412503 its reverse (30521416162), we get a palindrome (56682828665).

The spelling of 26161412503 in words is "twenty-six billion, one hundred sixty-one million, four hundred twelve thousand, five hundred three".