671548208388 has 24 divisors (see below), whose sum is σ = 1620978434880. Its totient is φ = 216130457760.

The previous prime is 671548208377. The next prime is 671548208399. The reversal of 671548208388 is 883802845176.

It is an interprime number because it is at equal distance from previous prime (671548208377) and next prime (671548208399).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 964867768 + ... + 964868463.

It is an arithmetic number, because the mean of its divisors is an integer number (67540768120).

Almost surely, 2^671548208388 is an apocalyptic number.

It is an amenable number.

671548208388 is an abundant number, since it is smaller than the sum of its proper divisors (949430226492).

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

671548208388 is a wasteful number, since it uses less digits than its factorization.

671548208388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1929736267 (or 1929736265 counting only the distinct ones).

The product of its (nonzero) digits is 20643840, while the sum is 60.

The spelling of 671548208388 in words is "six hundred seventy-one billion, five hundred forty-eight million, two hundred eight thousand, three hundred eighty-eight".