73263318528 has 80 divisors (see below), whose sum is σ = 199938671856. Its totient is φ = 23825448960.

The previous prime is 73263318497. The next prime is 73263318529. The reversal of 73263318528 is 82581336237.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73263318529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 518701 + ... + 644652.

Almost surely, 2^73263318528 is an apocalyptic number.

It is an amenable number.

73263318528 is an abundant number, since it is smaller than the sum of its proper divisors (126675353328).

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

73263318528 is a wasteful number, since it uses less digits than its factorization.

73263318528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1163415 (or 1163399 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 48.

The spelling of 73263318528 in words is "seventy-three billion, two hundred sixty-three million, three hundred eighteen thousand, five hundred twenty-eight".