1642312712 has 8 divisors (see below), whose sum is σ = 3079336350. Its totient is φ = 821156352.

The previous prime is 1642312703. The next prime is 1642312739. The reversal of 1642312712 is 2172132461.

It can be written as a sum of positive squares in only one way, i.e., 1543389796 + 98922916 = 39286^2 + 9946^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102644537 + ... + 102644552.

Almost surely, 2^1642312712 is an apocalyptic number.

It is an amenable number.

1642312712 is a deficient number, since it is larger than the sum of its proper divisors (1437023638).

1642312712 is a wasteful number, since it uses less digits than its factorization.

1642312712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205289095 (or 205289091 counting only the distinct ones).

The product of its digits is 4032, while the sum is 29.

The square root of 1642312712 is about 40525.4575791563. The cubic root of 1642312712 is about 1179.8277810521.

The spelling of 1642312712 in words is "one billion, six hundred forty-two million, three hundred twelve thousand, seven hundred twelve".