381451402446 has 64 divisors (see below), whose sum is σ = 779287703040. Its totient is φ = 124450444800.

The previous prime is 381451402411. The next prime is 381451402483. The reversal of 381451402446 is 644204154183.

It is a junction number, because it is equal to n+sod(n) for n = 381451402398 and 381451402407.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 145757730 + ... + 145760346.

It is an arithmetic number, because the mean of its divisors is an integer number (12176370360).

Almost surely, 2^381451402446 is an apocalyptic number.

381451402446 is an abundant number, since it is smaller than the sum of its proper divisors (397836300594).

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

381451402446 is a wasteful number, since it uses less digits than its factorization.

381451402446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5369.

The product of its (nonzero) digits is 368640, while the sum is 42.

The spelling of 381451402446 in words is "three hundred eighty-one billion, four hundred fifty-one million, four hundred two thousand, four hundred forty-six".