61729080299 has 2 divisors, whose sum is σ = 61729080300. Its totient is φ = 61729080298.

The previous prime is 61729080293. The next prime is 61729080419. The reversal of 61729080299 is 99208092716.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61729080299 - 2³² = 57434113003 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61729080299.

It is not a weakly prime, because it can be changed into another prime (61729080293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30864540149 + 30864540150.

It is an arithmetic number, because the mean of its divisors is an integer number (30864540150).

Almost surely, 2^61729080299 is an apocalyptic number.

61729080299 is a deficient number, since it is larger than the sum of its proper divisors (1).

61729080299 is an equidigital number, since it uses as much as digits as its factorization.

61729080299 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 979776, while the sum is 53.

The spelling of 61729080299 in words is "sixty-one billion, seven hundred twenty-nine million, eighty thousand, two hundred ninety-nine".