73801371445 has 4 divisors (see below), whose sum is σ = 88561645740. Its totient is φ = 59041097152.

The previous prime is 73801371439. The next prime is 73801371467. The reversal of 73801371445 is 54417310837.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 28199477329 + 45601894116 = 167927^2 + 213546^2 .

It is a cyclic number.

It is not a de Polignac number, because 73801371445 - 2¹³ = 73801363253 is a prime.

It is a super-2 number, since 2×73801371445² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7380137140 + ... + 7380137149.

It is an arithmetic number, because the mean of its divisors is an integer number (22140411435).

Almost surely, 2^73801371445 is an apocalyptic number.

It is an amenable number.

73801371445 is a deficient number, since it is larger than the sum of its proper divisors (14760274295).

73801371445 is a wasteful number, since it uses less digits than its factorization.

73801371445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14760274294.

The product of its (nonzero) digits is 282240, while the sum is 43.

The spelling of 73801371445 in words is "seventy-three billion, eight hundred one million, three hundred seventy-one thousand, four hundred forty-five".