43429793520 has 80 divisors (see below), whose sum is σ = 137496913920. Its totient is φ = 11334865152.

The previous prime is 43429793507. The next prime is 43429793527. The reversal of 43429793520 is 2539792434.

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

It is a super-2 number, since 2×43429793520² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 43429793520.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43429793527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1913800 + ... + 1936359.

It is an arithmetic number, because the mean of its divisors is an integer number (1718711424).

Almost surely, 2^43429793520 is an apocalyptic number.

43429793520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

43429793520 is an abundant number, since it is smaller than the sum of its proper divisors (94067120400).

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

43429793520 is a wasteful number, since it uses less digits than its factorization.

43429793520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3850222 (or 3850216 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 48.

The spelling of 43429793520 in words is "forty-three billion, four hundred twenty-nine million, seven hundred ninety-three thousand, five hundred twenty".