846901668722 has 54 divisors (see below), whose sum is σ = 1389735241479. Its totient is φ = 387002740320.

The previous prime is 846901668721. The next prime is 846901668761. The reversal of 846901668722 is 227866109648.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 787672225081 + 59229443641 = 887509^2 + 243371^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=650731.

It is a super-2 number, since 2×846901668722² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (846901668721) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 717104972 + ... + 717106152.

Almost surely, 2^846901668722 is an apocalyptic number.

846901668722 is a deficient number, since it is larger than the sum of its proper divisors (542833572757).

846901668722 is an equidigital number, since it uses as much as digits as its factorization.

846901668722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2460 (or 1231 counting only the distinct ones).

The product of its (nonzero) digits is 13934592, while the sum is 59.

The spelling of 846901668722 in words is "eight hundred forty-six billion, nine hundred one million, six hundred sixty-eight thousand, seven hundred twenty-two".