32278761847 has 2 divisors, whose sum is σ = 32278761848. Its totient is φ = 32278761846.

The previous prime is 32278761733. The next prime is 32278761869. The reversal of 32278761847 is 74816787223.

It is a strong prime.

It is an emirp because it is prime and its reverse (74816787223) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32278761847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32278761247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16139380923 + 16139380924.

It is an arithmetic number, because the mean of its divisors is an integer number (16139380924).

Almost surely, 2^32278761847 is an apocalyptic number.

32278761847 is a deficient number, since it is larger than the sum of its proper divisors (1).

32278761847 is an equidigital number, since it uses as much as digits as its factorization.

32278761847 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6322176, while the sum is 55.

The spelling of 32278761847 in words is "thirty-two billion, two hundred seventy-eight million, seven hundred sixty-one thousand, eight hundred forty-seven".