26672814563 has 4 divisors (see below), whose sum is σ = 27533227968. Its totient is φ = 25812401160.

The previous prime is 26672814541. The next prime is 26672814569. The reversal of 26672814563 is 36541827662.

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: 36541827662 = 2 ⋅18270913831.

It is a cyclic number.

It is not a de Polignac number, because 26672814563 - 2²² = 26668620259 is a prime.

It is a super-2 number, since 2×26672814563² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26672814569) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 430206656 + ... + 430206717.

It is an arithmetic number, because the mean of its divisors is an integer number (6883306992).

Almost surely, 2^26672814563 is an apocalyptic number.

26672814563 is a deficient number, since it is larger than the sum of its proper divisors (860413405).

26672814563 is an equidigital number, since it uses as much as digits as its factorization.

26672814563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 860413404.

The product of its digits is 2903040, while the sum is 50.

The spelling of 26672814563 in words is "twenty-six billion, six hundred seventy-two million, eight hundred fourteen thousand, five hundred sixty-three".