73142773928 has 48 divisors (see below), whose sum is σ = 159568920180. Its totient is φ = 31339913472.

The previous prime is 73142773927. The next prime is 73142773933. The reversal of 73142773928 is 82937724137.

It can be written as a sum of positive squares in 2 ways, for example, as 46828094404 + 26314679524 = 216398^2 + 162218^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 73142773928.

It is not an unprimeable number, because it can be changed into a prime (73142773927) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1986050 + ... + 2022542.

Almost surely, 2^73142773928 is an apocalyptic number.

It is an amenable number.

73142773928 is an abundant number, since it is smaller than the sum of its proper divisors (86426146252).

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

73142773928 is a wasteful number, since it uses less digits than its factorization.

73142773928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41626 (or 41615 counting only the distinct ones).

The product of its digits is 3556224, while the sum is 53.

The spelling of 73142773928 in words is "seventy-three billion, one hundred forty-two million, seven hundred seventy-three thousand, nine hundred twenty-eight".