671082878580 has 192 divisors, whose sum is σ = 1968256862208. Its totient is φ = 170519247360.

The previous prime is 671082878569. The next prime is 671082878581. The reversal of 671082878580 is 85878280176.

671082878580 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×671082878580³ (a number of 36 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671082878581) 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, 760002819 + ... + 760003701.

It is an arithmetic number, because the mean of its divisors is an integer number (10251337824).

Almost surely, 2^671082878580 is an apocalyptic number.

671082878580 is a gapful number since it is divisible by the number (60) 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 671082878580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (984128431104).

671082878580 is an abundant number, since it is smaller than the sum of its proper divisors (1297173983628).

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

671082878580 is a wasteful number, since it uses less digits than its factorization.

671082878580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2406 (or 2404 counting only the distinct ones).

The product of its (nonzero) digits is 12042240, while the sum is 60.

The spelling of 671082878580 in words is "six hundred seventy-one billion, eighty-two million, eight hundred seventy-eight thousand, five hundred eighty".