877420965321 has 6 divisors (see below), whose sum is σ = 1267385838810. Its totient is φ = 584947310208.

The previous prime is 877420965293. The next prime is 877420965341. The reversal of 877420965321 is 123569024778.

It is a happy number.

877420965321 is a `hidden beast` number, since 87 + 7 + 4 + 20 + 9 + 6 + 532 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 855506604096 + 21914361225 = 924936^2 + 148035^2 .

It is not a de Polignac number, because 877420965321 - 2⁹ = 877420964809 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (877420965341) 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, 48745609176 + ... + 48745609193.

It is an arithmetic number, because the mean of its divisors is an integer number (211230973135).

It is a 2-persistent number, because it is pandigital, and so is 2⋅877420965321 = 1754841930642, but 3⋅877420965321 = 2632262895963 is not.

Almost surely, 2^877420965321 is an apocalyptic number.

It is an amenable number.

877420965321 is a deficient number, since it is larger than the sum of its proper divisors (389964873489).

877420965321 is a wasteful number, since it uses less digits than its factorization.

877420965321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97491218375 (or 97491218372 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 54.

The spelling of 877420965321 in words is "eight hundred seventy-seven billion, four hundred twenty million, nine hundred sixty-five thousand, three hundred twenty-one".