72511441775563 has 4 divisors (see below), whose sum is σ = 82870219172080. Its totient is φ = 62152664379048.

The previous prime is 72511441775503. The next prime is 72511441775567. The reversal of 72511441775563 is 36557714411527.

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 72511441775563 - 2³⁷ = 72374002822091 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72511441775498 and 72511441775507.

It is not an unprimeable number, because it can be changed into a prime (72511441775567) 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, 5179388698248 + ... + 5179388698261.

It is an arithmetic number, because the mean of its divisors is an integer number (20717554793020).

Almost surely, 2^{72511441775563} is an apocalyptic number.

72511441775563 is a deficient number, since it is larger than the sum of its proper divisors (10358777396517).

72511441775563 is a wasteful number, since it uses less digits than its factorization.

72511441775563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10358777396516.

The product of its digits is 24696000, while the sum is 58.

The spelling of 72511441775563 in words is "seventy-two trillion, five hundred eleven billion, four hundred forty-one million, seven hundred seventy-five thousand, five hundred sixty-three".