846864506879 has 8 divisors (see below), whose sum is σ = 849843066240. Its totient is φ = 843890507416.

The previous prime is 846864506867. The next prime is 846864506897. The reversal of 846864506879 is 978605468648.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 846864506879 - 2²⁸ = 846596071423 is a prime.

It is a super-2 number, since 2×846864506879² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (846864506819) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 767669 + ... + 1510974.

It is an arithmetic number, because the mean of its divisors is an integer number (106230383280).

Almost surely, 2^846864506879 is an apocalyptic number.

846864506879 is a deficient number, since it is larger than the sum of its proper divisors (2978559361).

846864506879 is a wasteful number, since it uses less digits than its factorization.

846864506879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2279949.

The product of its (nonzero) digits is 557383680, while the sum is 71.

The spelling of 846864506879 in words is "eight hundred forty-six billion, eight hundred sixty-four million, five hundred six thousand, eight hundred seventy-nine".