73687238280 has 96 divisors (see below), whose sum is σ = 239521253400. Its totient is φ = 19646834688.

The previous prime is 73687238249. The next prime is 73687238291. The reversal of 73687238280 is 8283278637.

73687238280 is a `hidden beast` number, since 73 + 68 + 7 + 238 + 280 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 50040795204 + 23646443076 = 223698^2 + 153774^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3116262 + ... + 3139818.

Almost surely, 2^73687238280 is an apocalyptic number.

It is an amenable number.

73687238280 is an abundant number, since it is smaller than the sum of its proper divisors (165834015120).

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

73687238280 is a wasteful number, since it uses less digits than its factorization.

73687238280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32263 (or 32256 counting only the distinct ones).

The product of its (nonzero) digits is 5419008, while the sum is 54.

The spelling of 73687238280 in words is "seventy-three billion, six hundred eighty-seven million, two hundred thirty-eight thousand, two hundred eighty".