72641350985 has 8 divisors (see below), whose sum is σ = 99622424256. Its totient is φ = 49811212080.

The previous prime is 72641350913. The next prime is 72641351021. The reversal of 72641350985 is 58905314627.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 72641350985 - 2¹² = 72641346889 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1037733551 + ... + 1037733620.

It is an arithmetic number, because the mean of its divisors is an integer number (12452803032).

It is a 1-persistent number, because it is pandigital, but 2⋅72641350985 = 145282701970 is not.

Almost surely, 2^72641350985 is an apocalyptic number.

It is an amenable number.

72641350985 is a deficient number, since it is larger than the sum of its proper divisors (26981073271).

72641350985 is a wasteful number, since it uses less digits than its factorization.

72641350985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2075467183.

The product of its (nonzero) digits is 1814400, while the sum is 50.

The spelling of 72641350985 in words is "seventy-two billion, six hundred forty-one million, three hundred fifty thousand, nine hundred eighty-five".