72276302603 has 4 divisors (see below), whose sum is σ = 73294278768. Its totient is φ = 71258326440.

The previous prime is 72276302599. The next prime is 72276302713. The reversal of 72276302603 is 30620367227.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30620367227 = 2371 ⋅12914537.

It is a cyclic number.

It is not a de Polignac number, because 72276302603 - 2² = 72276302599 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72276304603) 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, 508987976 + ... + 508988117.

It is an arithmetic number, because the mean of its divisors is an integer number (18323569692).

Almost surely, 2^72276302603 is an apocalyptic number.

72276302603 is a deficient number, since it is larger than the sum of its proper divisors (1017976165).

72276302603 is a wasteful number, since it uses less digits than its factorization.

72276302603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1017976164.

The product of its (nonzero) digits is 127008, while the sum is 38.

The spelling of 72276302603 in words is "seventy-two billion, two hundred seventy-six million, three hundred two thousand, six hundred three".