3918378126 has 16 divisors (see below), whose sum is σ = 8439583824. Its totient is φ = 1205654784.

The previous prime is 3918378119. The next prime is 3918378133. The reversal of 3918378126 is 6218738193.

It is an interprime number because it is at equal distance from previous prime (3918378119) and next prime (3918378133).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 25117731 + ... + 25117886.

It is an arithmetic number, because the mean of its divisors is an integer number (527473989).

Almost surely, 2^3918378126 is an apocalyptic number.

3918378126 is an abundant number, since it is smaller than the sum of its proper divisors (4521205698).

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

3918378126 is a wasteful number, since it uses less digits than its factorization.

3918378126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50235635.

The product of its digits is 435456, while the sum is 48.

The square root of 3918378126 is about 62596.9498138687. The cubic root of 3918378126 is about 1576.5295464149.

The spelling of 3918378126 in words is "three billion, nine hundred eighteen million, three hundred seventy-eight thousand, one hundred twenty-six".