862638949836268 has 18 divisors (see below), whose sum is σ = 1659332360119868. Its totient is φ = 392108613561720.

The previous prime is 862638949836263. The next prime is 862638949836269.

862638949836268 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (862638949836263) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 891155939430 + ... + 891155940397.

Almost surely, 2^{862638949836268} is an apocalyptic number.

It is an amenable number.

862638949836268 is a deficient number, since it is larger than the sum of its proper divisors (796693410283600).

862638949836268 is a wasteful number, since it uses less digits than its factorization.

862638949836268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1782311879853 (or 1782311879840 counting only the distinct ones).

The product of its digits is 61917364224, while the sum is 88.

The spelling of 862638949836268 in words is "eight hundred sixty-two trillion, six hundred thirty-eight billion, nine hundred forty-nine million, eight hundred thirty-six thousand, two hundred sixty-eight".