4433130231978 has 128 divisors (see below), whose sum is σ = 10756622960640. Its totient is φ = 1191626277120.

The previous prime is 4433130231977. The next prime is 4433130232073. The reversal of 4433130231978 is 8791320313344.

It is not an unprimeable number, because it can be changed into a prime (4433130231977) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5196525 + ... + 5989167.

It is an arithmetic number, because the mean of its divisors is an integer number (84036116880).

Almost surely, 2^{4433130231978} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4433130231978, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5378311480320).

4433130231978 is an abundant number, since it is smaller than the sum of its proper divisors (6323492728662).

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

4433130231978 is a wasteful number, since it uses less digits than its factorization.

4433130231978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 792812.

The product of its (nonzero) digits is 1306368, while the sum is 48.

The spelling of 4433130231978 in words is "four trillion, four hundred thirty-three billion, one hundred thirty million, two hundred thirty-one thousand, nine hundred seventy-eight".