73220860280 has 64 divisors (see below), whose sum is σ = 165223000800. Its totient is φ = 29203845120.

The previous prime is 73220860261. The next prime is 73220860331. The reversal of 73220860280 is 8206802237.

It is a super-2 number, since 2×73220860280² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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, 34007684 + ... + 34009836.

Almost surely, 2^73220860280 is an apocalyptic number.

It is an amenable number.

73220860280 is an abundant number, since it is smaller than the sum of its proper divisors (92002140520).

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

73220860280 is a wasteful number, since it uses less digits than its factorization.

73220860280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4224 (or 4220 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 38.

The spelling of 73220860280 in words is "seventy-three billion, two hundred twenty million, eight hundred sixty thousand, two hundred eighty".