873151770223656 has 1024 divisors, whose sum is σ = 3082128371712000. Its totient is φ = 222466318663680.

The previous prime is 873151770223639. The next prime is 873151770223687. The reversal of 873151770223656 is 656322077151378.

873151770223656 is a `hidden beast` number, since 8 + 7 + 31 + 517 + 7 + 0 + 2 + 2 + 36 + 56 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a junction number, because it is equal to n+sod(n) for n = 873151770223593 and 873151770223602.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 241669461306 + ... + 241669464918.

It is an arithmetic number, because the mean of its divisors is an integer number (3009890988000).

Almost surely, 2^{873151770223656} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 873151770223656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1541064185856000).

873151770223656 is an abundant number, since it is smaller than the sum of its proper divisors (2208976601488344).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

873151770223656 is a wasteful number, since it uses less digits than its factorization.

873151770223656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4871 (or 4861 counting only the distinct ones).

The product of its (nonzero) digits is 88905600, while the sum is 63.

The spelling of 873151770223656 in words is "eight hundred seventy-three trillion, one hundred fifty-one billion, seven hundred seventy million, two hundred twenty-three thousand, six hundred fifty-six".