464417751215640 has 128 divisors (see below), whose sum is σ = 1394727393024000. Its totient is φ = 123713723827200.

The previous prime is 464417751215543. The next prime is 464417751215651. The reversal of 464417751215640 is 46512157714464.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1233813465 + ... + 1234189815.

It is an arithmetic number, because the mean of its divisors is an integer number (10896307758000).

Almost surely, 2^{464417751215640} is an apocalyptic number.

464417751215640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

464417751215640 is an abundant number, since it is smaller than the sum of its proper divisors (930309641808360).

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

464417751215640 is a wasteful number, since it uses less digits than its factorization.

464417751215640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387217 (or 387213 counting only the distinct ones).

The product of its (nonzero) digits is 22579200, while the sum is 57.

The spelling of 464417751215640 in words is "four hundred sixty-four trillion, four hundred seventeen billion, seven hundred fifty-one million, two hundred fifteen thousand, six hundred forty".