849026021908 has 6 divisors (see below), whose sum is σ = 1485795538346. Its totient is φ = 424513010952.

The previous prime is 849026021869. The next prime is 849026021911. The reversal of 849026021908 is 809120620948.

It can be written as a sum of positive squares in only one way, i.e., 607249264644 + 241776757264 = 779262^2 + 491708^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106128252735 + ... + 106128252742.

Almost surely, 2^849026021908 is an apocalyptic number.

It is an amenable number.

849026021908 is a deficient number, since it is larger than the sum of its proper divisors (636769516438).

849026021908 is a wasteful number, since it uses less digits than its factorization.

849026021908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212256505481 (or 212256505479 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 49.

The spelling of 849026021908 in words is "eight hundred forty-nine billion, twenty-six million, twenty-one thousand, nine hundred eight".