73557702668272 has 40 divisors (see below), whose sum is σ = 142794939762144. Its totient is φ = 36707457341184.

The previous prime is 73557702668243. The next prime is 73557702668291. The reversal of 73557702668272 is 27286620775537.

It is a junction number, because it is equal to n+sod(n) for n = 73557702668198 and 73557702668207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17156598 + ... + 21011050.

Almost surely, 2^{73557702668272} is an apocalyptic number.

It is an amenable number.

73557702668272 is a deficient number, since it is larger than the sum of its proper divisors (69237237093872).

73557702668272 is a wasteful number, since it uses less digits than its factorization.

73557702668272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3856777 (or 3856771 counting only the distinct ones).

The product of its (nonzero) digits is 414892800, while the sum is 67.

The spelling of 73557702668272 in words is "seventy-three trillion, five hundred fifty-seven billion, seven hundred two million, six hundred sixty-eight thousand, two hundred seventy-two".