26266450031 has 4 divisors (see below), whose sum is σ = 26299826232. Its totient is φ = 26233073832.

The previous prime is 26266450019. The next prime is 26266450037. The reversal of 26266450031 is 13005466262.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13005466262 = 2 ⋅6502733131.

It is a cyclic number.

It is not a de Polignac number, because 26266450031 - 2¹⁰ = 26266449007 is a prime.

It is a super-2 number, since 2×26266450031² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 26266449973 and 26266450000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26266450037) 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 3 ways as a sum of consecutive naturals, for example, 16686920 + ... + 16688493.

It is an arithmetic number, because the mean of its divisors is an integer number (6574956558).

Almost surely, 2^26266450031 is an apocalyptic number.

26266450031 is a deficient number, since it is larger than the sum of its proper divisors (33376201).

26266450031 is an equidigital number, since it uses as much as digits as its factorization.

26266450031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33376200.

The product of its (nonzero) digits is 51840, while the sum is 35.

The spelling of 26266450031 in words is "twenty-six billion, two hundred sixty-six million, four hundred fifty thousand, thirty-one".