671951231952 has 1440 divisors, whose sum is σ = 2613016756224. Its totient is φ = 146080972800.

The previous prime is 671951231893. The next prime is 671951232013. The reversal of 671951231952 is 259132159176.

671951231952 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 Harshad number since it is a multiple of its sum of digits (51).

It is a junction number, because it is equal to n+sod(n) for n = 671951231895 and 671951231904.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 3013234113 + ... + 3013234335.

Almost surely, 2^671951231952 is an apocalyptic number.

671951231952 is a gapful number since it is divisible by the number (62) 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 671951231952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1306508378112).

671951231952 is an abundant number, since it is smaller than the sum of its proper divisors (1941065524272).

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

671951231952 is a wasteful number, since it uses less digits than its factorization.

671951231952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337 (or 307 counting only the distinct ones).

The product of its digits is 1020600, while the sum is 51.

The spelling of 671951231952 in words is "six hundred seventy-one billion, nine hundred fifty-one million, two hundred thirty-one thousand, nine hundred fifty-two".