3815693816 has 16 divisors (see below), whose sum is σ = 7804828440. Its totient is φ = 1734406240.

The previous prime is 3815693797. The next prime is 3815693831. The reversal of 3815693816 is 6183965183.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21679991 + ... + 21680166.

Almost surely, 2^3815693816 is an apocalyptic number.

It is an amenable number.

3815693816 is an abundant number, since it is smaller than the sum of its proper divisors (3989134624).

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

3815693816 is a wasteful number, since it uses less digits than its factorization.

3815693816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43360174 (or 43360170 counting only the distinct ones).

The product of its digits is 933120, while the sum is 50.

The square root of 3815693816 is about 61771.3025279539. The cubic root of 3815693816 is about 1562.6360504980.

The spelling of 3815693816 in words is "three billion, eight hundred fifteen million, six hundred ninety-three thousand, eight hundred sixteen".