43275126420 has 144 divisors (see below), whose sum is σ = 140521425408. Its totient is φ = 11167735680.

The previous prime is 43275126397. The next prime is 43275126443. The reversal of 43275126420 is 2462157234.

43275126420 is a `hidden beast` number, since 4 + 3 + 2 + 7 + 5 + 1 + 2 + 642 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (43275126397) and next prime (43275126443).

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, 7042 + ... + 294278.

It is an arithmetic number, because the mean of its divisors is an integer number (975843232).

Almost surely, 2^43275126420 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 43275126420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70260712704).

43275126420 is an abundant number, since it is smaller than the sum of its proper divisors (97246298988).

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

43275126420 is a wasteful number, since it uses less digits than its factorization.

43275126420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287292 (or 287278 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 36.

The spelling of 43275126420 in words is "forty-three billion, two hundred seventy-five million, one hundred twenty-six thousand, four hundred twenty".