26979535963 has 4 divisors (see below), whose sum is σ = 28399511560. Its totient is φ = 25559560368.

The previous prime is 26979535943. The next prime is 26979536009. The reversal of 26979535963 is 36953597962.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36953597962 = 2 ⋅18476798981.

It is a cyclic number.

It is not a de Polignac number, because 26979535963 - 2³³ = 18389601371 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 26979535895 and 26979535904.

It is not an unprimeable number, because it can be changed into a prime (26979535943) 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, 709987770 + ... + 709987807.

It is an arithmetic number, because the mean of its divisors is an integer number (7099877890).

Almost surely, 2^26979535963 is an apocalyptic number.

26979535963 is a deficient number, since it is larger than the sum of its proper divisors (1419975597).

26979535963 is a wasteful number, since it uses less digits than its factorization.

26979535963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1419975596.

The product of its digits is 82668600, while the sum is 64.

The spelling of 26979535963 in words is "twenty-six billion, nine hundred seventy-nine million, five hundred thirty-five thousand, nine hundred sixty-three".