73665272548 has 48 divisors (see below), whose sum is σ = 152509029120. Its totient is φ = 30462558336.

The previous prime is 73665272521. The next prime is 73665272587. The reversal of 73665272548 is 84527256637.

It is a super-2 number, since 2×73665272548² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1268361 + ... + 1325167.

It is an arithmetic number, because the mean of its divisors is an integer number (3177271440).

Almost surely, 2^73665272548 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 73665272548, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76254514560).

73665272548 is an abundant number, since it is smaller than the sum of its proper divisors (78843756572).

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

73665272548 is a wasteful number, since it uses less digits than its factorization.

73665272548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58444 (or 58442 counting only the distinct ones).

The product of its digits is 16934400, while the sum is 55.

The spelling of 73665272548 in words is "seventy-three billion, six hundred sixty-five million, two hundred seventy-two thousand, five hundred forty-eight".