845771722406880 has 384 divisors, whose sum is σ = 2833841867028480. Its totient is φ = 211298463744000.

The previous prime is 845771722406879. The next prime is 845771722406881. The reversal of 845771722406880 is 88604227177548.

It is an interprime number because it is at equal distance from previous prime (845771722406879) and next prime (845771722406881).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (845771722406881) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8877861007 + ... + 8877956273.

It is an arithmetic number, because the mean of its divisors is an integer number (7379796528720).

Almost surely, 2^{845771722406880} is an apocalyptic number.

845771722406880 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 845771722406880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1416920933514240).

845771722406880 is an abundant number, since it is smaller than the sum of its proper divisors (1988070144621600).

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

845771722406880 is a wasteful number, since it uses less digits than its factorization.

845771722406880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100282 (or 100274 counting only the distinct ones).

The product of its (nonzero) digits is 337182720, while the sum is 69.

The spelling of 845771722406880 in words is "eight hundred forty-five trillion, seven hundred seventy-one billion, seven hundred twenty-two million, four hundred six thousand, eight hundred eighty".