73534279816 has 48 divisors (see below), whose sum is σ = 142741134900. Its totient is φ = 35511588864.

The previous prime is 73534279789. The next prime is 73534279859. The reversal of 73534279816 is 61897243537.

It can be written as a sum of positive squares in 6 ways, for example, as 46126152900 + 27408126916 = 214770^2 + 165554^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1475920 + ... + 1524928.

Almost surely, 2^73534279816 is an apocalyptic number.

It is an amenable number.

73534279816 is a deficient number, since it is larger than the sum of its proper divisors (69206855084).

73534279816 is a wasteful number, since it uses less digits than its factorization.

73534279816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49226 (or 49185 counting only the distinct ones).

The product of its digits is 7620480, while the sum is 55.

The spelling of 73534279816 in words is "seventy-three billion, five hundred thirty-four million, two hundred seventy-nine thousand, eight hundred sixteen".