3861626078 has 16 divisors (see below), whose sum is σ = 6045683616. Its totient is φ = 1846437120.

The previous prime is 3861626077. The next prime is 3861626089. The reversal of 3861626078 is 8706261683.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3861626077) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 291650 + ... + 304602.

It is an arithmetic number, because the mean of its divisors is an integer number (377855226).

Almost surely, 2^3861626078 is an apocalyptic number.

3861626078 is a deficient number, since it is larger than the sum of its proper divisors (2184057538).

3861626078 is a wasteful number, since it uses less digits than its factorization.

3861626078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19459.

The product of its (nonzero) digits is 580608, while the sum is 47.

The square root of 3861626078 is about 62141.9832158582. The cubic root of 3861626078 is about 1568.8812506747.

The spelling of 3861626078 in words is "three billion, eight hundred sixty-one million, six hundred twenty-six thousand, seventy-eight".