26661417948 has 60 divisors (see below), whose sum is σ = 76034424312. Its totient is φ = 8079216480.

The previous prime is 26661417907. The next prime is 26661417953. The reversal of 26661417948 is 84971416662.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 26661417894 and 26661417903.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3736815 + ... + 3743942.

Almost surely, 2^26661417948 is an apocalyptic number.

It is an amenable number.

26661417948 is an abundant number, since it is smaller than the sum of its proper divisors (49373006364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26661417948 is a wasteful number, since it uses less digits than its factorization.

26661417948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7480784 (or 7480773 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 54.

The spelling of 26661417948 in words is "twenty-six billion, six hundred sixty-one million, four hundred seventeen thousand, nine hundred forty-eight".