43425601632 has 288 divisors, whose sum is σ = 149422371840. Its totient is φ = 12231717120.

The previous prime is 43425601627. The next prime is 43425601663. The reversal of 43425601632 is 23610652434.

43425601632 is a `hidden beast` number, since 4 + 3 + 42 + 5 + 601 + 6 + 3 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a super-2 number, since 2×43425601632² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2998633 + ... + 3013079.

It is an arithmetic number, because the mean of its divisors is an integer number (518827680).

Almost surely, 2^43425601632 is an apocalyptic number.

43425601632 is a gapful number since it is divisible by the number (42) 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 43425601632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74711185920).

43425601632 is an abundant number, since it is smaller than the sum of its proper divisors (105996770208).

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

43425601632 is a wasteful number, since it uses less digits than its factorization.

43425601632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14551 (or 14530 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

The spelling of 43425601632 in words is "forty-three billion, four hundred twenty-five million, six hundred one thousand, six hundred thirty-two".