3911348866840 has 32 divisors (see below), whose sum is σ = 8833250718000. Its totient is φ = 1558723410304.

The previous prime is 3911348866783. The next prime is 3911348866897. The reversal of 3911348866840 is 486688431193.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3911348866783) and next prime (3911348866897).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 181743370 + ... + 181764889.

Almost surely, 2^{3911348866840} is an apocalyptic number.

It is an amenable number.

3911348866840 is an abundant number, since it is smaller than the sum of its proper divisors (4921901851160).

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

3911348866840 is a wasteful number, since it uses less digits than its factorization.

3911348866840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363508539 (or 363508535 counting only the distinct ones).

The product of its (nonzero) digits is 23887872, while the sum is 61.

The spelling of 3911348866840 in words is "three trillion, nine hundred eleven billion, three hundred forty-eight million, eight hundred sixty-six thousand, eight hundred forty".