73787320452 has 24 divisors (see below), whose sum is σ = 172179597856. Its totient is φ = 24594461568.

The previous prime is 73787320427. The next prime is 73787320457. The reversal of 73787320452 is 25402378737.

It is a super-2 number, since 2×73787320452² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (73787320457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85548 + ... + 393564.

Almost surely, 2^73787320452 is an apocalyptic number.

It is an amenable number.

73787320452 is an abundant number, since it is smaller than the sum of its proper divisors (98392277404).

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

73787320452 is a wasteful number, since it uses less digits than its factorization.

73787320452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327987 (or 327985 counting only the distinct ones).

The product of its (nonzero) digits is 1975680, while the sum is 48.

The spelling of 73787320452 in words is "seventy-three billion, seven hundred eighty-seven million, three hundred twenty thousand, four hundred fifty-two".