3851421057 has 96 divisors (see below), whose sum is σ = 6453457920. Its totient is φ = 2192400000.

The previous prime is 3851421053. The next prime is 3851421071. The reversal of 3851421057 is 7501241583.

3851421057 is a `hidden beast` number, since 38 + 514 + 2 + 105 + 7 = 666.

It is not a de Polignac number, because 3851421057 - 2² = 3851421053 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3851421053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 15344182 + ... + 15344432.

It is an arithmetic number, because the mean of its divisors is an integer number (67223520).

Almost surely, 2^3851421057 is an apocalyptic number.

3851421057 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

It is an amenable number.

3851421057 is a deficient number, since it is larger than the sum of its proper divisors (2602036863).

3851421057 is a wasteful number, since it uses less digits than its factorization.

3851421057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435 (or 432 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The square root of 3851421057 is about 62059.8183771110. The cubic root of 3851421057 is about 1567.4980172895.

The spelling of 3851421057 in words is "three billion, eight hundred fifty-one million, four hundred twenty-one thousand, fifty-seven".