73214340144540 has 48 divisors (see below), whose sum is σ = 234285888463872. Its totient is φ = 16734706318656.

The previous prime is 73214340144529. The next prime is 73214340144571. The reversal of 73214340144540 is 4544104341237.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 73214340144492 and 73214340144501.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87159928324 + ... + 87159929163.

It is an arithmetic number, because the mean of its divisors is an integer number (4880956009664).

Almost surely, 2^{73214340144540} is an apocalyptic number.

73214340144540 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

73214340144540 is an abundant number, since it is smaller than the sum of its proper divisors (161071548319332).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

73214340144540 is a wasteful number, since it uses less digits than its factorization.

73214340144540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174319857506 (or 174319857504 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 42.

Adding to 73214340144540 its reverse (4544104341237), we get a palindrome (77758444485777).

The spelling of 73214340144540 in words is "seventy-three trillion, two hundred fourteen billion, three hundred forty million, one hundred forty-four thousand, five hundred forty".