4921208257988 has 36 divisors (see below), whose sum is σ = 9482335413936. Its totient is φ = 2233101961200.

The previous prime is 4921208257921. The next prime is 4921208258027. The reversal of 4921208257988 is 8897528021294.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8376698 + ... + 8944913.

Almost surely, 2^{4921208257988} is an apocalyptic number.

It is an amenable number.

4921208257988 is a deficient number, since it is larger than the sum of its proper divisors (4561127155948).

4921208257988 is a wasteful number, since it uses less digits than its factorization.

4921208257988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17322224 (or 17322211 counting only the distinct ones).

The product of its (nonzero) digits is 46448640, while the sum is 65.

The spelling of 4921208257988 in words is "four trillion, nine hundred twenty-one billion, two hundred eight million, two hundred fifty-seven thousand, nine hundred eighty-eight".