381487581053016 has 64 divisors (see below), whose sum is σ = 961021385280000. Its totient is φ = 126188914051200.

The previous prime is 381487581052973. The next prime is 381487581053017. The reversal of 381487581053016 is 610350185784183.

It is a super-3 number, since 3×381487581053016³ (a number of 45 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381487581053017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137309610 + ... + 140060358.

It is an arithmetic number, because the mean of its divisors is an integer number (15015959145000).

Almost surely, 2^{381487581053016} is an apocalyptic number.

It is an amenable number.

381487581053016 is an abundant number, since it is smaller than the sum of its proper divisors (579533804226984).

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

381487581053016 is a wasteful number, since it uses less digits than its factorization.

381487581053016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2795000 (or 2794996 counting only the distinct ones).

The product of its (nonzero) digits is 19353600, while the sum is 60.

The spelling of 381487581053016 in words is "three hundred eighty-one trillion, four hundred eighty-seven billion, five hundred eighty-one million, fifty-three thousand, sixteen".