72783675103 has 4 divisors (see below), whose sum is σ = 73869998680. Its totient is φ = 71697351528.

The previous prime is 72783675091. The next prime is 72783675131. The reversal of 72783675103 is 30157638727.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30157638727 = 103 ⋅292792609.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72783675103 is a prime.

It is a super-2 number, since 2×72783675103² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72783675143) 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, 543161688 + ... + 543161821.

It is an arithmetic number, because the mean of its divisors is an integer number (18467499670).

Almost surely, 2^72783675103 is an apocalyptic number.

72783675103 is a deficient number, since it is larger than the sum of its proper divisors (1086323577).

72783675103 is a wasteful number, since it uses less digits than its factorization.

72783675103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1086323576.

The product of its (nonzero) digits is 1481760, while the sum is 49.

The spelling of 72783675103 in words is "seventy-two billion, seven hundred eighty-three million, six hundred seventy-five thousand, one hundred three".