671275514540 has 48 divisors (see below), whose sum is σ = 1421622316800. Its totient is φ = 266242359552.

The previous prime is 671275514509. The next prime is 671275514561. The reversal of 671275514540 is 45415572176.

671275514540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×671275514540² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1280906 + ... + 1727214.

It is an arithmetic number, because the mean of its divisors is an integer number (29617131600).

Almost surely, 2^671275514540 is an apocalyptic number.

It is an amenable number.

671275514540 is an abundant number, since it is smaller than the sum of its proper divisors (750346802260).

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

671275514540 is a wasteful number, since it uses less digits than its factorization.

671275514540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446954 (or 446952 counting only the distinct ones).

The product of its (nonzero) digits is 1176000, while the sum is 47.

The spelling of 671275514540 in words is "six hundred seventy-one billion, two hundred seventy-five million, five hundred fourteen thousand, five hundred forty".