64471303744 has 63 divisors (see below), whose sum is σ = 135976359873. Its totient is φ = 30323186688.

The previous prime is 64471303739. The next prime is 64471303777. The reversal of 64471303744 is 44730317446.

The square root of 64471303744 is 253912.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 50193921600 + 14277382144 = 224040^2 + 119488^2 .

It is a super-2 number, since 2×64471303744² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 64471303744.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 34531099 + ... + 34532965.

Almost surely, 2^64471303744 is an apocalyptic number.

64471303744 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

64471303744 is the 253912-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64471303744

64471303744 is an abundant number, since it is smaller than the sum of its proper divisors (71505056129).

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

64471303744 is an frugal number, since it uses more digits than its factorization.

64471303744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3780 (or 1886 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 43.

The spelling of 64471303744 in words is "sixty-four billion, four hundred seventy-one million, three hundred three thousand, seven hundred forty-four".