73018349856 has 96 divisors (see below), whose sum is σ = 213268204800. Its totient is φ = 24305391360.

The previous prime is 73018349777. The next prime is 73018349891. The reversal of 73018349856 is 65894381037.

73018349856 is a `hidden beast` number, since 73 + 0 + 1 + 83 + 498 + 5 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 562446 + ... + 679986.

It is an arithmetic number, because the mean of its divisors is an integer number (2221543800).

Almost surely, 2^73018349856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 73018349856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106634102400).

73018349856 is an abundant number, since it is smaller than the sum of its proper divisors (140249854944).

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

73018349856 is a wasteful number, since it uses less digits than its factorization.

73018349856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118279 (or 118265 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 54.

The spelling of 73018349856 in words is "seventy-three billion, eighteen million, three hundred forty-nine thousand, eight hundred fifty-six".