43719464464 has 45 divisors (see below), whose sum is σ = 91746382599. Its totient is φ = 20173196160.

The previous prime is 43719464449. The next prime is 43719464473. The reversal of 43719464464 is 46446491734.

The square root of 43719464464 is 209092.

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

It can be written as a sum of positive squares in 4 ways, for example, as 28096464400 + 15623000064 = 167620^2 + 124992^2 .

It is a super-2 number, since 2×43719464464² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a Duffinian number.

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, 10870774 + ... + 10874794.

Almost surely, 2^43719464464 is an apocalyptic number.

43719464464 is the 209092-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43719464464

43719464464 is an abundant number, since it is smaller than the sum of its proper divisors (48026918135).

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

43719464464 is an frugal number, since it uses more digits than its factorization.

43719464464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8076 (or 4036 counting only the distinct ones).

The product of its digits is 6967296, while the sum is 52.

The spelling of 43719464464 in words is "forty-three billion, seven hundred nineteen million, four hundred sixty-four thousand, four hundred sixty-four".