43286309972 has 6 divisors (see below), whose sum is σ = 75751042458. Its totient is φ = 21643154984.

The previous prime is 43286309917. The next prime is 43286309977. The reversal of 43286309972 is 27990368234.

It can be written as a sum of positive squares in only one way, i.e., 33751568656 + 9534741316 = 183716^2 + 97646^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43286309977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5410788743 + ... + 5410788750.

It is an arithmetic number, because the mean of its divisors is an integer number (12625173743).

Almost surely, 2^43286309972 is an apocalyptic number.

It is an amenable number.

43286309972 is a deficient number, since it is larger than the sum of its proper divisors (32464732486).

43286309972 is a wasteful number, since it uses less digits than its factorization.

43286309972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10821577497 (or 10821577495 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 53.

The spelling of 43286309972 in words is "forty-three billion, two hundred eighty-six million, three hundred nine thousand, nine hundred seventy-two".