849255568978 has 16 divisors (see below), whose sum is σ = 1274679866880. Its totient is φ = 424362347136.

The previous prime is 849255568957. The next prime is 849255569011. The reversal of 849255568978 is 879865552948.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37435443 + ... + 37458121.

It is an arithmetic number, because the mean of its divisors is an integer number (79667491680).

Almost surely, 2^849255568978 is an apocalyptic number.

849255568978 is a deficient number, since it is larger than the sum of its proper divisors (425424297902).

849255568978 is a wasteful number, since it uses less digits than its factorization.

849255568978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33561.

The product of its digits is 1741824000, while the sum is 76.

The spelling of 849255568978 in words is "eight hundred forty-nine billion, two hundred fifty-five million, five hundred sixty-eight thousand, nine hundred seventy-eight".