26968502961 has 20 divisors (see below), whose sum is σ = 42037862592. Its totient is φ = 17197305048.

The previous prime is 26968502947. The next prime is 26968502963. The reversal of 26968502961 is 16920586962.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-26968502961 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 26968502898 and 26968502907.

It is not an unprimeable number, because it can be changed into a prime (26968502963) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 7236061 + ... + 7239786.

Almost surely, 2^26968502961 is an apocalyptic number.

It is an amenable number.

26968502961 is a deficient number, since it is larger than the sum of its proper divisors (15069359631).

26968502961 is a wasteful number, since it uses less digits than its factorization.

26968502961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14475882 (or 14475873 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 54.

The spelling of 26968502961 in words is "twenty-six billion, nine hundred sixty-eight million, five hundred two thousand, nine hundred sixty-one".