906638273512 has 8 divisors (see below), whose sum is σ = 1699946762850. Its totient is φ = 453319136752.

The previous prime is 906638273509. The next prime is 906638273531. The reversal of 906638273512 is 215372836609.

It can be written as a sum of positive squares in only one way, i.e., 646136238276 + 260502035236 = 803826^2 + 510394^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 906638273512.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56664892087 + ... + 56664892102.

Almost surely, 2^906638273512 is an apocalyptic number.

It is an amenable number.

906638273512 is a deficient number, since it is larger than the sum of its proper divisors (793308489338).

906638273512 is a wasteful number, since it uses less digits than its factorization.

906638273512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113329784195 (or 113329784191 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 52.

The spelling of 906638273512 in words is "nine hundred six billion, six hundred thirty-eight million, two hundred seventy-three thousand, five hundred twelve".