3919865802 has 16 divisors (see below), whose sum is σ = 7843878432. Its totient is φ = 1305930800.

The previous prime is 3919865801. The next prime is 3919865837. The reversal of 3919865802 is 2085689193.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (3919865801) 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 7 ways as a sum of consecutive naturals, for example, 160428 + ... + 183239.

It is an arithmetic number, because the mean of its divisors is an integer number (490242402).

Almost surely, 2^3919865802 is an apocalyptic number.

3919865802 is an abundant number, since it is smaller than the sum of its proper divisors (3924012630).

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

3919865802 is a wasteful number, since it uses less digits than its factorization.

3919865802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345573.

The product of its (nonzero) digits is 933120, while the sum is 51.

The square root of 3919865802 is about 62608.8316613559. The cubic root of 3919865802 is about 1576.7290395332.

The spelling of 3919865802 in words is "three billion, nine hundred nineteen million, eight hundred sixty-five thousand, eight hundred two".