73445299442 has 16 divisors (see below), whose sum is σ = 110397953760. Its totient is φ = 36646017408.

The previous prime is 73445299429. The next prime is 73445299507. The reversal of 73445299442 is 24499254437.

It is a super-2 number, since 2×73445299442² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6316418 + ... + 6328034.

It is an arithmetic number, because the mean of its divisors is an integer number (6899872110).

Almost surely, 2^73445299442 is an apocalyptic number.

73445299442 is a deficient number, since it is larger than the sum of its proper divisors (36952654318).

73445299442 is a wasteful number, since it uses less digits than its factorization.

73445299442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17945.

The product of its digits is 8709120, while the sum is 53.

The spelling of 73445299442 in words is "seventy-three billion, four hundred forty-five million, two hundred ninety-nine thousand, four hundred forty-two".