73280871767856 has 80 divisors (see below), whose sum is σ = 197624130888960. Its totient is φ = 23354934071040.

The previous prime is 73280871767837. The next prime is 73280871767863. The reversal of 73280871767856 is 65876717808237.

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, 11592726 + ... + 16761653.

It is an arithmetic number, because the mean of its divisors is an integer number (2470301636112).

Almost surely, 2^{73280871767856} is an apocalyptic number.

It is an amenable number.

73280871767856 is an abundant number, since it is smaller than the sum of its proper divisors (124343259121104).

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

73280871767856 is a wasteful number, since it uses less digits than its factorization.

73280871767856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28356754 (or 28356748 counting only the distinct ones).

The product of its (nonzero) digits is 1327656960, while the sum is 75.

The spelling of 73280871767856 in words is "seventy-three trillion, two hundred eighty billion, eight hundred seventy-one million, seven hundred sixty-seven thousand, eight hundred fifty-six".