73534507420 has 48 divisors (see below), whose sum is σ = 178370343648. Its totient is φ = 25166888960.

The previous prime is 73534507393. The next prime is 73534507421. The reversal of 73534507420 is 2470543537.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73534507421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9827077 + ... + 9834556.

It is an arithmetic number, because the mean of its divisors is an integer number (3716048826).

Almost surely, 2^73534507420 is an apocalyptic number.

It is an amenable number.

73534507420 is an abundant number, since it is smaller than the sum of its proper divisors (104835836228).

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

73534507420 is a wasteful number, since it uses less digits than its factorization.

73534507420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19661670 (or 19661668 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 40.

The spelling of 73534507420 in words is "seventy-three billion, five hundred thirty-four million, five hundred seven thousand, four hundred twenty".