72303404477783 has 4 divisors (see below), whose sum is σ = 72303532768320. Its totient is φ = 72303276187248.

The previous prime is 72303404477753. The next prime is 72303404477791. The reversal of 72303404477783 is 38777440430327.

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

It is a cyclic number.

It is not a de Polignac number, because 72303404477783 - 2¹⁰ = 72303404476759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72303404477753) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63296135 + ... + 64428312.

It is an arithmetic number, because the mean of its divisors is an integer number (18075883192080).

Almost surely, 2^{72303404477783} is an apocalyptic number.

72303404477783 is a deficient number, since it is larger than the sum of its proper divisors (128290537).

72303404477783 is a wasteful number, since it uses less digits than its factorization.

72303404477783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128290536.

The product of its (nonzero) digits is 66382848, while the sum is 59.

The spelling of 72303404477783 in words is "seventy-two trillion, three hundred three billion, four hundred four million, four hundred seventy-seven thousand, seven hundred eighty-three".