72493897587 has 16 divisors (see below), whose sum is σ = 97541537280. Its totient is φ = 47889360000.

The previous prime is 72493897583. The next prime is 72493897601. The reversal of 72493897587 is 78579839427.

It is not a de Polignac number, because 72493897587 - 2² = 72493897583 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72493897583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17887 + ... + 381192.

It is an arithmetic number, because the mean of its divisors is an integer number (6096346080).

Almost surely, 2^72493897587 is an apocalyptic number.

72493897587 is a deficient number, since it is larger than the sum of its proper divisors (25047639693).

72493897587 is a wasteful number, since it uses less digits than its factorization.

72493897587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399634.

The product of its digits is 213373440, while the sum is 69.

The spelling of 72493897587 in words is "seventy-two billion, four hundred ninety-three million, eight hundred ninety-seven thousand, five hundred eighty-seven".