2101944677508 has 72 divisors (see below), whose sum is σ = 5794390492800. Its totient is φ = 638565460416.

The previous prime is 2101944677491. The next prime is 2101944677513. The reversal of 2101944677508 is 8057764491012.

2101944677508 is a `hidden beast` number, since 2 + 1 + 0 + 1 + 94 + 46 + 7 + 7 + 508 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28389198 + ... + 28463141.

Almost surely, 2^{2101944677508} is an apocalyptic number.

It is an amenable number.

2101944677508 is an abundant number, since it is smaller than the sum of its proper divisors (3692445815292).

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

2101944677508 is a wasteful number, since it uses less digits than its factorization.

2101944677508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56852441 (or 56852436 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 54.

The spelling of 2101944677508 in words is "two trillion, one hundred one billion, nine hundred forty-four million, six hundred seventy-seven thousand, five hundred eight".