3888865386731 has 8 divisors (see below), whose sum is σ = 4332422977680. Its totient is φ = 3465938381472.

The previous prime is 3888865386727. The next prime is 3888865386773. The reversal of 3888865386731 is 1376835688883.

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 3888865386731 - 2² = 3888865386727 is a prime.

It is a super-2 number, since 2×3888865386731² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3888865386031) 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, 5157646025 + ... + 5157646778.

It is an arithmetic number, because the mean of its divisors is an integer number (541552872210).

Almost surely, 2^{3888865386731} is an apocalyptic number.

3888865386731 is a deficient number, since it is larger than the sum of its proper divisors (443557590949).

3888865386731 is a wasteful number, since it uses less digits than its factorization.

3888865386731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10315292845.

The product of its digits is 1114767360, while the sum is 74.

The spelling of 3888865386731 in words is "three trillion, eight hundred eighty-eight billion, eight hundred sixty-five million, three hundred eighty-six thousand, seven hundred thirty-one".