72458445887 has 2 divisors, whose sum is σ = 72458445888. Its totient is φ = 72458445886.

The previous prime is 72458445883. The next prime is 72458445907. The reversal of 72458445887 is 78854485427.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72458445887 - 2² = 72458445883 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72458445883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36229222943 + 36229222944.

It is an arithmetic number, because the mean of its divisors is an integer number (36229222944).

Almost surely, 2^72458445887 is an apocalyptic number.

72458445887 is a deficient number, since it is larger than the sum of its proper divisors (1).

72458445887 is an equidigital number, since it uses as much as digits as its factorization.

72458445887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 80281600, while the sum is 62.

The spelling of 72458445887 in words is "seventy-two billion, four hundred fifty-eight million, four hundred forty-five thousand, eight hundred eighty-seven".