26654293993 has 2 divisors, whose sum is σ = 26654293994. Its totient is φ = 26654293992.

The previous prime is 26654293973. The next prime is 26654294003. The reversal of 26654293993 is 39939245662.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26625101584 + 29192409 = 163172^2 + 5403^2 .

It is a cyclic number.

It is not a de Polignac number, because 26654293993 - 2²⁹ = 26117423081 is a prime.

It is not a weakly prime, because it can be changed into another prime (26654293903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13327146996 + 13327146997.

It is an arithmetic number, because the mean of its divisors is an integer number (13327146997).

Almost surely, 2^26654293993 is an apocalyptic number.

It is an amenable number.

26654293993 is a deficient number, since it is larger than the sum of its proper divisors (1).

26654293993 is an equidigital number, since it uses as much as digits as its factorization.

26654293993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18895680, while the sum is 58.

The spelling of 26654293993 in words is "twenty-six billion, six hundred fifty-four million, two hundred ninety-three thousand, nine hundred ninety-three".