849926187901 has 16 divisors (see below), whose sum is σ = 978572750848. Its totient is φ = 723094614000.

The previous prime is 849926187889. The next prime is 849926187941. The reversal of 849926187901 is 109781629948.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 849926187901 - 2²¹ = 849924090749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (849926187941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 974566 + ... + 1627768.

It is an arithmetic number, because the mean of its divisors is an integer number (61160796928).

Almost surely, 2^849926187901 is an apocalyptic number.

It is an amenable number.

849926187901 is a deficient number, since it is larger than the sum of its proper divisors (128646562947).

849926187901 is a wasteful number, since it uses less digits than its factorization.

849926187901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654592.

The product of its (nonzero) digits is 15676416, while the sum is 64.

The spelling of 849926187901 in words is "eight hundred forty-nine billion, nine hundred twenty-six million, one hundred eighty-seven thousand, nine hundred one".