3888867538481 has 8 divisors (see below), whose sum is σ = 4039883768064. Its totient is φ = 3739449364560.

The previous prime is 3888867538469. The next prime is 3888867538499. The reversal of 3888867538481 is 1848357688883.

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 3888867538481 - 2¹⁸ = 3888867276337 is a prime.

It is a super-2 number, since 2×3888867538481² (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 (3888867538081) 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, 399508955 + ... + 399518688.

It is an arithmetic number, because the mean of its divisors is an integer number (504985471008).

Almost surely, 2^{3888867538481} is an apocalyptic number.

3888867538481 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

3888867538481 is a deficient number, since it is larger than the sum of its proper divisors (151016229583).

3888867538481 is a wasteful number, since it uses less digits than its factorization.

3888867538481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 799027831.

The product of its digits is 1981808640, while the sum is 77.

The spelling of 3888867538481 in words is "three trillion, eight hundred eighty-eight billion, eight hundred sixty-seven million, five hundred thirty-eight thousand, four hundred eighty-one".