72733816354 has 4 divisors (see below), whose sum is σ = 109100724534. Its totient is φ = 36366908176.

The previous prime is 72733816339. The next prime is 72733816367. The reversal of 72733816354 is 45361833727.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 72561813129 + 172003225 = 269373^2 + 13115^2 .

It is a junction number, because it is equal to n+sod(n) for n = 72733816298 and 72733816307.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18183454087 + ... + 18183454090.

Almost surely, 2^72733816354 is an apocalyptic number.

72733816354 is a deficient number, since it is larger than the sum of its proper divisors (36366908180).

72733816354 is a wasteful number, since it uses less digits than its factorization.

72733816354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36366908179.

The product of its digits is 2540160, while the sum is 49.

The spelling of 72733816354 in words is "seventy-two billion, seven hundred thirty-three million, eight hundred sixteen thousand, three hundred fifty-four".