73456205511 has 16 divisors (see below), whose sum is σ = 105492097760. Its totient is φ = 45196738560.

The previous prime is 73456205479. The next prime is 73456205519. The reversal of 73456205511 is 11550265437.

It is not a de Polignac number, because 73456205511 - 2⁵ = 73456205479 is a prime.

It is a super-2 number, since 2×73456205511² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 73456205511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73456205519) 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 in 15 ways as a sum of consecutive naturals, for example, 110391 + ... + 398871.

It is an arithmetic number, because the mean of its divisors is an integer number (6593256110).

Almost surely, 2^73456205511 is an apocalyptic number.

73456205511 is a deficient number, since it is larger than the sum of its proper divisors (32035892249).

73456205511 is a wasteful number, since it uses less digits than its factorization.

73456205511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295026.

The product of its (nonzero) digits is 126000, while the sum is 39.

The spelling of 73456205511 in words is "seventy-three billion, four hundred fifty-six million, two hundred five thousand, five hundred eleven".