76998447601 has 2 divisors, whose sum is σ = 76998447602. Its totient is φ = 76998447600.

The previous prime is 76998447577. The next prime is 76998447629. The reversal of 76998447601 is 10674489967.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56727806976 + 20270640625 = 238176^2 + 142375^2 .

It is an emirp because it is prime and its reverse (10674489967) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 76998447601 - 2²³ = 76990058993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 76998447601.

It is not a weakly prime, because it can be changed into another prime (76998447641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38499223800 + 38499223801.

It is an arithmetic number, because the mean of its divisors is an integer number (38499223801).

Almost surely, 2^76998447601 is an apocalyptic number.

It is an amenable number.

76998447601 is a deficient number, since it is larger than the sum of its proper divisors (1).

76998447601 is an equidigital number, since it uses as much as digits as its factorization.

76998447601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18289152, while the sum is 61.

The spelling of 76998447601 in words is "seventy-six billion, nine hundred ninety-eight million, four hundred forty-seven thousand, six hundred one".