8572640493 has 8 divisors (see below), whose sum is σ = 11432056000. Its totient is φ = 5714159328.

The previous prime is 8572640491. The next prime is 8572640567. The reversal of 8572640493 is 3940462758.

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

It is not a de Polignac number, because 8572640493 - 2¹ = 8572640491 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8572640491) 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, 211888 + ... + 249081.

It is an arithmetic number, because the mean of its divisors is an integer number (1429007000).

Almost surely, 2^8572640493 is an apocalyptic number.

It is an amenable number.

8572640493 is a deficient number, since it is larger than the sum of its proper divisors (2859415507).

8572640493 is a wasteful number, since it uses less digits than its factorization.

8572640493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467171.

The product of its (nonzero) digits is 1451520, while the sum is 48.

The square root of 8572640493 is about 92588.5548704590. The cubic root of 8572640493 is about 2046.6246650968.

The spelling of 8572640493 in words is "eight billion, five hundred seventy-two million, six hundred forty thousand, four hundred ninety-three".