26159892977 has 2 divisors, whose sum is σ = 26159892978. Its totient is φ = 26159892976.

The previous prime is 26159892971. The next prime is 26159893007. The reversal of 26159892977 is 77929895162.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24759337201 + 1400555776 = 157351^2 + 37424^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26159892977 is a prime.

It is not a weakly prime, because it can be changed into another prime (26159892971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13079946488 + 13079946489.

It is an arithmetic number, because the mean of its divisors is an integer number (13079946489).

Almost surely, 2^26159892977 is an apocalyptic number.

It is an amenable number.

26159892977 is a deficient number, since it is larger than the sum of its proper divisors (1).

26159892977 is an equidigital number, since it uses as much as digits as its factorization.

26159892977 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34292160, while the sum is 65.

The spelling of 26159892977 in words is "twenty-six billion, one hundred fifty-nine million, eight hundred ninety-two thousand, nine hundred seventy-seven".