581350677387 has 16 divisors (see below), whose sum is σ = 825098544000. Its totient is φ = 363043353024.

The previous prime is 581350677359. The next prime is 581350677389. The reversal of 581350677387 is 783776053185.

It is not a de Polignac number, because 581350677387 - 2¹² = 581350673291 is a prime.

It is a super-2 number, since 2×581350677387² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 581350677387.

It is not an unprimeable number, because it can be changed into a prime (581350677389) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57293437 + ... + 57303582.

It is an arithmetic number, because the mean of its divisors is an integer number (51568659000).

Almost surely, 2^581350677387 is an apocalyptic number.

581350677387 is a gapful number since it is divisible by the number (57) formed by its first and last digit.

581350677387 is a deficient number, since it is larger than the sum of its proper divisors (243747866613).

581350677387 is a wasteful number, since it uses less digits than its factorization.

581350677387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114597130.

The product of its (nonzero) digits is 29635200, while the sum is 60.

The spelling of 581350677387 in words is "five hundred eighty-one billion, three hundred fifty million, six hundred seventy-seven thousand, three hundred eighty-seven".