381840856419 has 32 divisors (see below), whose sum is σ = 559837393920. Its totient is φ = 229574426400.

The previous prime is 381840856409. The next prime is 381840856421. The reversal of 381840856419 is 914658048183.

It is not a de Polignac number, because 381840856419 - 2¹⁶ = 381840790883 is a prime.

It is a super-2 number, since 2×381840856419² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (381840856409) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5963364 + ... + 6027054.

It is an arithmetic number, because the mean of its divisors is an integer number (17494918560).

Almost surely, 2^381840856419 is an apocalyptic number.

381840856419 is a deficient number, since it is larger than the sum of its proper divisors (177996537501).

381840856419 is a wasteful number, since it uses less digits than its factorization.

381840856419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65151.

The product of its (nonzero) digits is 6635520, while the sum is 57.

The spelling of 381840856419 in words is "three hundred eighty-one billion, eight hundred forty million, eight hundred fifty-six thousand, four hundred nineteen".