26894902947 has 16 divisors (see below), whose sum is σ = 39857971968. Its totient is φ = 15992394080.

The previous prime is 26894902913. The next prime is 26894902949. The reversal of 26894902947 is 74920949862.

It is a cyclic number.

It is not a de Polignac number, because 26894902947 - 2⁸ = 26894902691 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26894902949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7686903 + ... + 7690400.

It is an arithmetic number, because the mean of its divisors is an integer number (2491123248).

Almost surely, 2^26894902947 is an apocalyptic number.

26894902947 is a deficient number, since it is larger than the sum of its proper divisors (12963069021).

26894902947 is a wasteful number, since it uses less digits than its factorization.

26894902947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15377370.

The product of its (nonzero) digits is 15676416, while the sum is 60.

The spelling of 26894902947 in words is "twenty-six billion, eight hundred ninety-four million, nine hundred two thousand, nine hundred forty-seven".