73047222432 has 36 divisors (see below), whose sum is σ = 207728039610. Its totient is φ = 24349074048.

The previous prime is 73047222427. The next prime is 73047222473. The reversal of 73047222432 is 23422274037.

It can be written as a sum of positive squares in only one way, i.e., 53156069136 + 19891153296 = 230556^2 + 141036^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 126817807 + ... + 126818382.

Almost surely, 2^73047222432 is an apocalyptic number.

73047222432 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

73047222432 is an abundant number, since it is smaller than the sum of its proper divisors (134680817178).

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

73047222432 is a wasteful number, since it uses less digits than its factorization.

73047222432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253636205 (or 253636194 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 36.

Adding to 73047222432 its reverse (23422274037), we get a palindrome (96469496469).

The spelling of 73047222432 in words is "seventy-three billion, forty-seven million, two hundred twenty-two thousand, four hundred thirty-two".