73549286748 has 432 divisors, whose sum is σ = 240988849920. Its totient is φ = 18767282688.

The previous prime is 73549286743. The next prime is 73549286749. The reversal of 73549286748 is 84768294537.

73549286748 is a `hidden beast` number, since 7 + 3 + 549 + 2 + 86 + 7 + 4 + 8 = 666.

It is a super-2 number, since 2×73549286748² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73549286743) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 56272711 + ... + 56274017.

It is an arithmetic number, because the mean of its divisors is an integer number (557844560).

Almost surely, 2^73549286748 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 73549286748, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120494424960).

73549286748 is an abundant number, since it is smaller than the sum of its proper divisors (167439563172).

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

73549286748 is a wasteful number, since it uses less digits than its factorization.

73549286748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1446 (or 1434 counting only the distinct ones).

The product of its digits is 81285120, while the sum is 63.

The spelling of 73549286748 in words is "seventy-three billion, five hundred forty-nine million, two hundred eighty-six thousand, seven hundred forty-eight".