43198759664 has 40 divisors (see below), whose sum is σ = 84696870720. Its totient is φ = 21342590208.

The previous prime is 43198759621. The next prime is 43198759679. The reversal of 43198759664 is 46695789134.

It is a super-2 number, since 2×43198759664² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 43198759597 and 43198759606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 606302 + ... + 673794.

It is an arithmetic number, because the mean of its divisors is an integer number (2117421768).

Almost surely, 2^43198759664 is an apocalyptic number.

It is an amenable number.

43198759664 is a deficient number, since it is larger than the sum of its proper divisors (41498111056).

43198759664 is a wasteful number, since it uses less digits than its factorization.

43198759664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67977 (or 67971 counting only the distinct ones).

The product of its digits is 39191040, while the sum is 62.

The spelling of 43198759664 in words is "forty-three billion, one hundred ninety-eight million, seven hundred fifty-nine thousand, six hundred sixty-four".