671191515948 has 24 divisors (see below), whose sum is σ = 1572068348928. Its totient is φ = 222879817936.

The previous prime is 671191515941. The next prime is 671191516031. The reversal of 671191515948 is 849515191176.

It is not an unprimeable number, because it can be changed into a prime (671191515941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106332636 + ... + 106338947.

It is an arithmetic number, because the mean of its divisors is an integer number (65502847872).

Almost surely, 2^671191515948 is an apocalyptic number.

It is an amenable number.

671191515948 is an abundant number, since it is smaller than the sum of its proper divisors (900876832980).

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

671191515948 is a wasteful number, since it uses less digits than its factorization.

671191515948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212671853 (or 212671851 counting only the distinct ones).

The product of its digits is 2721600, while the sum is 57.

The spelling of 671191515948 in words is "six hundred seventy-one billion, one hundred ninety-one million, five hundred fifteen thousand, nine hundred forty-eight".