43513433380 has 96 divisors (see below), whose sum is σ = 98732390400. Its totient is φ = 16073390592.

The previous prime is 43513433363. The next prime is 43513433387. The reversal of 43513433380 is 8333431534.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is not an unprimeable number, because it can be changed into a prime (43513433387) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1248957 + ... + 1283323.

It is an arithmetic number, because the mean of its divisors is an integer number (1028462400).

Almost surely, 2^43513433380 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43513433380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49366195200).

43513433380 is an abundant number, since it is smaller than the sum of its proper divisors (55218957020).

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

43513433380 is a wasteful number, since it uses less digits than its factorization.

43513433380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34501 (or 34499 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 37.

The spelling of 43513433380 in words is "forty-three billion, five hundred thirteen million, four hundred thirty-three thousand, three hundred eighty".