43967352648 has 128 divisors (see below), whose sum is σ = 119090304000. Its totient is φ = 13483895040.

The previous prime is 43967352643. The next prime is 43967352677. The reversal of 43967352648 is 84625376934.

It is a super-2 number, since 2×43967352648² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (43967352641) 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, 2159058 + ... + 2179326.

It is an arithmetic number, because the mean of its divisors is an integer number (930393000).

Almost surely, 2^43967352648 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 43967352648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59545152000).

43967352648 is an abundant number, since it is smaller than the sum of its proper divisors (75122951352).

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

43967352648 is a wasteful number, since it uses less digits than its factorization.

43967352648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20435 (or 20431 counting only the distinct ones).

The product of its digits is 26127360, while the sum is 57.

The spelling of 43967352648 in words is "forty-three billion, nine hundred sixty-seven million, three hundred fifty-two thousand, six hundred forty-eight".