3878115537 has 8 divisors (see below), whose sum is σ = 5395639104. Its totient is φ = 2473001168.

The previous prime is 3878115533. The next prime is 3878115547. The reversal of 3878115537 is 7355118783.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3878115537 - 2² = 3878115533 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3878115533) 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, 28102218 + ... + 28102355.

It is an arithmetic number, because the mean of its divisors is an integer number (674454888).

Almost surely, 2^3878115537 is an apocalyptic number.

It is an amenable number.

3878115537 is a deficient number, since it is larger than the sum of its proper divisors (1517523567).

3878115537 is a wasteful number, since it uses less digits than its factorization.

3878115537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56204599.

The product of its digits is 705600, while the sum is 48.

The square root of 3878115537 is about 62274.5175573444. The cubic root of 3878115537 is about 1571.1111634367. Note that the first 4 decimals are identical.

The spelling of 3878115537 in words is "three billion, eight hundred seventy-eight million, one hundred fifteen thousand, five hundred thirty-seven".