79573726387 has 8 divisors (see below), whose sum is σ = 79971503040. Its totient is φ = 79176431040.

The previous prime is 79573726381. The next prime is 79573726439. The reversal of 79573726387 is 78362737597.

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 79573726387 - 2¹¹ = 79573724339 is a prime.

It is a super-2 number, since 2×79573726387² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79573726381) 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, 213462 + ... + 452452.

It is an arithmetic number, because the mean of its divisors is an integer number (9996437880).

Almost surely, 2^79573726387 is an apocalyptic number.

79573726387 is a deficient number, since it is larger than the sum of its proper divisors (397776653).

79573726387 is a wasteful number, since it uses less digits than its factorization.

79573726387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240653.

The product of its digits is 93350880, while the sum is 64.

The spelling of 79573726387 in words is "seventy-nine billion, five hundred seventy-three million, seven hundred twenty-six thousand, three hundred eighty-seven".