3857516412 has 24 divisors (see below), whose sum is σ = 9210195456. Its totient is φ = 1255935408.

The previous prime is 3857516371. The next prime is 3857516417. The reversal of 3857516412 is 2146157583.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3857516417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3737388 + ... + 3738419.

It is an arithmetic number, because the mean of its divisors is an integer number (383758144).

Almost surely, 2^3857516412 is an apocalyptic number.

It is an amenable number.

3857516412 is an abundant number, since it is smaller than the sum of its proper divisors (5352679044).

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

3857516412 is a wasteful number, since it uses less digits than its factorization.

3857516412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7475857 (or 7475855 counting only the distinct ones).

The product of its digits is 201600, while the sum is 42.

The square root of 3857516412 is about 62108.9076703173. The cubic root of 3857516412 is about 1568.3245019203.

The spelling of 3857516412 in words is "three billion, eight hundred fifty-seven million, five hundred sixteen thousand, four hundred twelve".