671479925760 has 704 divisors, whose sum is σ = 2748558320640. Its totient is φ = 152280760320.

The previous prime is 671479925723. The next prime is 671479925791. The reversal of 671479925760 is 67529974176.

671479925760 is a `hidden beast` number, since 6 + 7 + 1 + 479 + 92 + 5 + 76 + 0 = 666.

It is a super-2 number, since 2×671479925760² (a number of 24 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 126763432 + ... + 126768728.

It is an arithmetic number, because the mean of its divisors is an integer number (3904202160).

Almost surely, 2^671479925760 is an apocalyptic number.

671479925760 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 671479925760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1374279160320).

671479925760 is an abundant number, since it is smaller than the sum of its proper divisors (2077078394880).

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

671479925760 is a wasteful number, since it uses less digits than its factorization.

671479925760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5469 (or 5445 counting only the distinct ones).

The product of its (nonzero) digits is 40007520, while the sum is 63.

The spelling of 671479925760 in words is "six hundred seventy-one billion, four hundred seventy-nine million, nine hundred twenty-five thousand, seven hundred sixty".