72345654263 has 2 divisors, whose sum is σ = 72345654264. Its totient is φ = 72345654262.

The previous prime is 72345654259. The next prime is 72345654301. The reversal of 72345654263 is 36245654327.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72345654263 - 2² = 72345654259 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72345654463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36172827131 + 36172827132.

It is an arithmetic number, because the mean of its divisors is an integer number (36172827132).

Almost surely, 2^72345654263 is an apocalyptic number.

72345654263 is a deficient number, since it is larger than the sum of its proper divisors (1).

72345654263 is an equidigital number, since it uses as much as digits as its factorization.

72345654263 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3628800, while the sum is 47.

The spelling of 72345654263 in words is "seventy-two billion, three hundred forty-five million, six hundred fifty-four thousand, two hundred sixty-three".