76920736010221 has 2 divisors, whose sum is σ = 76920736010222. Its totient is φ = 76920736010220.

The previous prime is 76920736010203. The next prime is 76920736010269. The reversal of 76920736010221 is 12201063702967.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76579808478121 + 340927532100 = 8750989^2 + 583890^2 .

It is an emirp because it is prime and its reverse (12201063702967) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 76920736010221 - 2¹¹ = 76920736008173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76920736010621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38460368005110 + 38460368005111.

It is an arithmetic number, because the mean of its divisors is an integer number (38460368005111).

Almost surely, 2^{76920736010221} is an apocalyptic number.

It is an amenable number.

76920736010221 is a deficient number, since it is larger than the sum of its proper divisors (1).

76920736010221 is an equidigital number, since it uses as much as digits as its factorization.

76920736010221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 381024, while the sum is 46.

The spelling of 76920736010221 in words is "seventy-six trillion, nine hundred twenty billion, seven hundred thirty-six million, ten thousand, two hundred twenty-one".