26974347647 has 8 divisors (see below), whose sum is σ = 29541659280. Its totient is φ = 24477373440.

The previous prime is 26974347643. The next prime is 26974347667. The reversal of 26974347647 is 74674347962.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 26974347647 - 2² = 26974347643 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (59).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26974347643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17583554 + ... + 17585087.

It is an arithmetic number, because the mean of its divisors is an integer number (3692707410).

Almost surely, 2^26974347647 is an apocalyptic number.

26974347647 is a deficient number, since it is larger than the sum of its proper divisors (2567311633).

26974347647 is a wasteful number, since it uses less digits than its factorization.

26974347647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35168713.

The product of its digits is 42674688, while the sum is 59.

The spelling of 26974347647 in words is "twenty-six billion, nine hundred seventy-four million, three hundred forty-seven thousand, six hundred forty-seven".