73905340372 has 12 divisors (see below), whose sum is σ = 129348873556. Its totient is φ = 36948519360.

The previous prime is 73905340361. The next prime is 73905340373. The reversal of 73905340372 is 27304350937.

It can be written as a sum of positive squares in 2 ways, for example, as 30041902276 + 43863438096 = 173326^2 + 209436^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73905340373) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 997473 + ... + 1069000.

Almost surely, 2^73905340372 is an apocalyptic number.

It is an amenable number.

73905340372 is a deficient number, since it is larger than the sum of its proper divisors (55443533184).

73905340372 is a wasteful number, since it uses less digits than its factorization.

73905340372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2075418 (or 2075416 counting only the distinct ones).

The product of its (nonzero) digits is 476280, while the sum is 43.

The spelling of 73905340372 in words is "seventy-three billion, nine hundred five million, three hundred forty thousand, three hundred seventy-two".