3881154051456 has 128 divisors (see below), whose sum is σ = 11251510329600. Its totient is φ = 1175586048000.

The previous prime is 3881154051451. The next prime is 3881154051469. The reversal of 3881154051456 is 6541504511883.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×3881154051456² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3881154051399 and 3881154051408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3881154051451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9381781 + ... + 9786731.

It is an arithmetic number, because the mean of its divisors is an integer number (87902424450).

Almost surely, 2^{3881154051456} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3881154051456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5625755164800).

3881154051456 is an abundant number, since it is smaller than the sum of its proper divisors (7370356278144).

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

3881154051456 is a wasteful number, since it uses less digits than its factorization.

3881154051456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407248 (or 407236 counting only the distinct ones).

The product of its (nonzero) digits is 2304000, while the sum is 51.

The spelling of 3881154051456 in words is "three trillion, eight hundred eighty-one billion, one hundred fifty-four million, fifty-one thousand, four hundred fifty-six".