83431223072 has 18 divisors (see below), whose sum is σ = 164258437329. Its totient is φ = 41714794560.

The previous prime is 83431223053. The next prime is 83431223081. The reversal of 83431223072 is 27032213438.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 51548977936 + 31882245136 = 227044^2 + 178556^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=204244.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1608422 + ... + 1659482.

Almost surely, 2^83431223072 is an apocalyptic number.

It is an amenable number.

83431223072 is a deficient number, since it is larger than the sum of its proper divisors (80827214257).

83431223072 is an frugal number, since it uses more digits than its factorization.

83431223072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102132 (or 51063 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 35.

The spelling of 83431223072 in words is "eighty-three billion, four hundred thirty-one million, two hundred twenty-three thousand, seventy-two".