26611654459 has 6 divisors (see below), whose sum is σ = 28816170396. Its totient is φ = 24564603960.

The previous prime is 26611654423. The next prime is 26611654513. The reversal of 26611654459 is 95445611662.

It is not a de Polignac number, because 26611654459 - 2⁹ = 26611653947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26611654409) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 78732537 + ... + 78732874.

It is an arithmetic number, because the mean of its divisors is an integer number (4802695066).

Almost surely, 2^26611654459 is an apocalyptic number.

26611654459 is a deficient number, since it is larger than the sum of its proper divisors (2204515937).

26611654459 is a wasteful number, since it uses less digits than its factorization.

26611654459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157465437 (or 157465424 counting only the distinct ones).

The product of its digits is 1555200, while the sum is 49.

The spelling of 26611654459 in words is "twenty-six billion, six hundred eleven million, six hundred fifty-four thousand, four hundred fifty-nine".