3878513739 has 64 divisors (see below), whose sum is σ = 6227020800. Its totient is φ = 2376912384.

The previous prime is 3878513729. The next prime is 3878513741. The reversal of 3878513739 is 9373158783.

It is not a de Polignac number, because 3878513739 - 2⁹ = 3878513227 is a prime.

It is a super-2 number, since 2×3878513739² = 30085737647223520242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3878513729) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5334594 + ... + 5335320.

It is an arithmetic number, because the mean of its divisors is an integer number (97297200).

Almost surely, 2^3878513739 is an apocalyptic number.

3878513739 is a deficient number, since it is larger than the sum of its proper divisors (2348507061).

3878513739 is a wasteful number, since it uses less digits than its factorization.

3878513739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1009 (or 1003 counting only the distinct ones).

The product of its digits is 3810240, while the sum is 54.

The square root of 3878513739 is about 62277.7146256990. The cubic root of 3878513739 is about 1571.1649351024.

The spelling of 3878513739 in words is "three billion, eight hundred seventy-eight million, five hundred thirteen thousand, seven hundred thirty-nine".