72273762550 has 48 divisors (see below), whose sum is σ = 147290684400. Its totient is φ = 26166556800.

The previous prime is 72273762499. The next prime is 72273762551. The reversal of 72273762550 is 5526737227.

It is a self number, because there is not a number n which added to its sum of digits gives 72273762550.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72273762551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 160965 + ... + 412864.

It is an arithmetic number, because the mean of its divisors is an integer number (3068555925).

Almost surely, 2^72273762550 is an apocalyptic number.

72273762550 is an abundant number, since it is smaller than the sum of its proper divisors (75016921850).

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

72273762550 is a wasteful number, since it uses less digits than its factorization.

72273762550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574081 (or 574076 counting only the distinct ones).

The product of its (nonzero) digits is 1234800, while the sum is 46.

The spelling of 72273762550 in words is "seventy-two billion, two hundred seventy-three million, seven hundred sixty-two thousand, five hundred fifty".