73721849339 has 2 divisors, whose sum is σ = 73721849340. Its totient is φ = 73721849338.

The previous prime is 73721849329. The next prime is 73721849351. The reversal of 73721849339 is 93394812737.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 73721849339 - 2¹⁶ = 73721783803 is a prime.

It is a super-2 number, since 2×73721849339² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (73721849329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36860924669 + 36860924670.

It is an arithmetic number, because the mean of its divisors is an integer number (36860924670).

Almost surely, 2^73721849339 is an apocalyptic number.

73721849339 is a deficient number, since it is larger than the sum of its proper divisors (1).

73721849339 is an equidigital number, since it uses as much as digits as its factorization.

73721849339 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6858432, while the sum is 56.

The spelling of 73721849339 in words is "seventy-three billion, seven hundred twenty-one million, eight hundred forty-nine thousand, three hundred thirty-nine".