73342201991 has 2 divisors, whose sum is σ = 73342201992. Its totient is φ = 73342201990.

The previous prime is 73342201969. The next prime is 73342202023. The reversal of 73342201991 is 19910224337.

It is a weak prime.

It is an emirp because it is prime and its reverse (19910224337) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73342201991 - 2⁶ = 73342201927 is a prime.

It is a super-3 number, since 3×73342201991³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73342201951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36671100995 + 36671100996.

It is an arithmetic number, because the mean of its divisors is an integer number (36671100996).

Almost surely, 2^73342201991 is an apocalyptic number.

73342201991 is a deficient number, since it is larger than the sum of its proper divisors (1).

73342201991 is an equidigital number, since it uses as much as digits as its factorization.

73342201991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81648, while the sum is 41.

The spelling of 73342201991 in words is "seventy-three billion, three hundred forty-two million, two hundred one thousand, nine hundred ninety-one".