73649091851 has 2 divisors, whose sum is σ = 73649091852. Its totient is φ = 73649091850.

The previous prime is 73649091847. The next prime is 73649091899. The reversal of 73649091851 is 15819094637.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 73649091851 - 2² = 73649091847 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 73649091793 and 73649091802.

It is not a weakly prime, because it can be changed into another prime (73649091151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36824545925 + 36824545926.

It is an arithmetic number, because the mean of its divisors is an integer number (36824545926).

Almost surely, 2^73649091851 is an apocalyptic number.

73649091851 is a deficient number, since it is larger than the sum of its proper divisors (1).

73649091851 is an equidigital number, since it uses as much as digits as its factorization.

73649091851 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1632960, while the sum is 53.

The spelling of 73649091851 in words is "seventy-three billion, six hundred forty-nine million, ninety-one thousand, eight hundred fifty-one".