26630139563 has 8 divisors (see below), whose sum is σ = 27125627760. Its totient is φ = 26139218400.

The previous prime is 26630139527. The next prime is 26630139587. The reversal of 26630139563 is 36593103662.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 26630139563 - 2²⁶ = 26563030699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26630132563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1129988 + ... + 1153313.

It is an arithmetic number, because the mean of its divisors is an integer number (3390703470).

Almost surely, 2^26630139563 is an apocalyptic number.

26630139563 is a deficient number, since it is larger than the sum of its proper divisors (495488197).

26630139563 is a wasteful number, since it uses less digits than its factorization.

26630139563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2283517.

The product of its (nonzero) digits is 524880, while the sum is 44.

The spelling of 26630139563 in words is "twenty-six billion, six hundred thirty million, one hundred thirty-nine thousand, five hundred sixty-three".