6119857840 has 20 divisors (see below), whose sum is σ = 14228669664. Its totient is φ = 2447943104.

The previous prime is 6119857813. The next prime is 6119857847. The reversal of 6119857840 is 487589116.

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (6119857847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38249032 + ... + 38249191.

Almost surely, 2^6119857840 is an apocalyptic number.

It is an amenable number.

6119857840 is an abundant number, since it is smaller than the sum of its proper divisors (8108811824).

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

6119857840 is a wasteful number, since it uses less digits than its factorization.

6119857840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76498236 (or 76498230 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 49.

The square root of 6119857840 is about 78229.5202592985. The cubic root of 6119857840 is about 1829.1406916459.

The spelling of 6119857840 in words is "six billion, one hundred nineteen million, eight hundred fifty-seven thousand, eight hundred forty".