72803038345565 has 8 divisors (see below), whose sum is σ = 95305795652448. Its totient is φ = 52947664251280.

The previous prime is 72803038345523. The next prime is 72803038345651. The reversal of 72803038345565 is 56554383030827.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 72803038345565 - 2¹⁸ = 72803038083421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 661845803087 + ... + 661845803196.

It is an arithmetic number, because the mean of its divisors is an integer number (11913224456556).

Almost surely, 2^{72803038345565} is an apocalyptic number.

It is an amenable number.

72803038345565 is a deficient number, since it is larger than the sum of its proper divisors (22502757306883).

72803038345565 is a wasteful number, since it uses less digits than its factorization.

72803038345565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1323691606299.

The product of its (nonzero) digits is 72576000, while the sum is 59.

The spelling of 72803038345565 in words is "seventy-two trillion, eight hundred three billion, thirty-eight million, three hundred forty-five thousand, five hundred sixty-five".