264432642615421 has 8 divisors (see below), whose sum is σ = 302212357691904. Its totient is φ = 226653833357520.

The previous prime is 264432642615353. The next prime is 264432642615451. The reversal of 264432642615421 is 124516246234462.

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 264432642615421 - 2⁷ = 264432642615293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264432642615451) 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, 225828970 + ... + 226996891.

It is an arithmetic number, because the mean of its divisors is an integer number (37776544711488).

Almost surely, 2^{264432642615421} is an apocalyptic number.

It is an amenable number.

264432642615421 is a deficient number, since it is larger than the sum of its proper divisors (37779715076483).

264432642615421 is an equidigital number, since it uses as much as digits as its factorization.

264432642615421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452909291.

The product of its digits is 13271040, while the sum is 52.

Adding to 264432642615421 its reverse (124516246234462), we get a palindrome (388948888849883).

The spelling of 264432642615421 in words is "two hundred sixty-four trillion, four hundred thirty-two billion, six hundred forty-two million, six hundred fifteen thousand, four hundred twenty-one".