671113923480 has 2560 divisors, whose sum is σ = 3196537344000. Its totient is φ = 124366233600.

The previous prime is 671113923479. The next prime is 671113923541. The reversal of 671113923480 is 84329311176.

671113923480 is a `hidden beast` number, since 6 + 7 + 11 + 139 + 23 + 480 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 639 ways as a sum of consecutive naturals, for example, 6515669109 + ... + 6515669211.

It is an arithmetic number, because the mean of its divisors is an integer number (1248647400).

Almost surely, 2^671113923480 is an apocalyptic number.

671113923480 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 671113923480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1598268672000).

671113923480 is an abundant number, since it is smaller than the sum of its proper divisors (2525423420520).

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

671113923480 is a wasteful number, since it uses less digits than its factorization.

671113923480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212 (or 185 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The spelling of 671113923480 in words is "six hundred seventy-one billion, one hundred thirteen million, nine hundred twenty-three thousand, four hundred eighty".