230621521719 has 8 divisors (see below), whose sum is σ = 307523211520. Its totient is φ = 153733756536.

The previous prime is 230621521673. The next prime is 230621521723. The reversal of 230621521719 is 917125126032.

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

It is a de Polignac number, because none of the positive numbers 2^k-230621521719 is a prime.

It is a super-2 number, since 2×230621521719² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230621521769) 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, 3442447 + ... + 3508800.

It is an arithmetic number, because the mean of its divisors is an integer number (38440401440).

Almost surely, 2^230621521719 is an apocalyptic number.

230621521719 is a deficient number, since it is larger than the sum of its proper divisors (76901689801).

230621521719 is a wasteful number, since it uses less digits than its factorization.

230621521719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6962309.

The product of its (nonzero) digits is 45360, while the sum is 39.

The spelling of 230621521719 in words is "two hundred thirty billion, six hundred twenty-one million, five hundred twenty-one thousand, seven hundred nineteen".