43631016400 has 120 divisors (see below), whose sum is σ = 108865062944. Its totient is φ = 16791667200.

The previous prime is 43631016379. The next prime is 43631016439. The reversal of 43631016400 is 461013634.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1133470 + ... + 1171330.

Almost surely, 2^43631016400 is an apocalyptic number.

43631016400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43631016400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54432531472).

43631016400 is an abundant number, since it is smaller than the sum of its proper divisors (65234046544).

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

43631016400 is a wasteful number, since it uses less digits than its factorization.

43631016400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37989 (or 37978 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

The spelling of 43631016400 in words is "forty-three billion, six hundred thirty-one million, sixteen thousand, four hundred".