464400236325520 has 80 divisors (see below), whose sum is σ = 1177893440762688. Its totient is φ = 168872014840320.

The previous prime is 464400236325511. The next prime is 464400236325533. The reversal of 464400236325520 is 25523632004464.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 204214582 + ... + 206476138.

Almost surely, 2^{464400236325520} is an apocalyptic number.

464400236325520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

464400236325520 is an abundant number, since it is smaller than the sum of its proper divisors (713493204437168).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

464400236325520 is a wasteful number, since it uses less digits than its factorization.

464400236325520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2494928 (or 2494922 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 46.

Adding to 464400236325520 its reverse (25523632004464), we get a palindrome (489923868329984).

The spelling of 464400236325520 in words is "four hundred sixty-four trillion, four hundred billion, two hundred thirty-six million, three hundred twenty-five thousand, five hundred twenty".