72354785641 has 8 divisors (see below), whose sum is σ = 74295524160. Its totient is φ = 70437860112.

The previous prime is 72354785627. The next prime is 72354785669. The reversal of 72354785641 is 14658745327.

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

It is a cyclic number.

It is not a de Polignac number, because 72354785641 - 2¹⁷ = 72354654569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72354785611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5947090 + ... + 5959243.

It is an arithmetic number, because the mean of its divisors is an integer number (9286940520).

Almost surely, 2^72354785641 is an apocalyptic number.

It is an amenable number.

72354785641 is a deficient number, since it is larger than the sum of its proper divisors (1940738519).

72354785641 is a wasteful number, since it uses less digits than its factorization.

72354785641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11906495.

The product of its digits is 5644800, while the sum is 52.

The spelling of 72354785641 in words is "seventy-two billion, three hundred fifty-four million, seven hundred eighty-five thousand, six hundred forty-one".