381450741555 has 64 divisors (see below), whose sum is σ = 696102543360. Its totient is φ = 176701249536.

The previous prime is 381450741547. The next prime is 381450741571. The reversal of 381450741555 is 555147054183.

It is not a de Polignac number, because 381450741555 - 2³ = 381450741547 is a prime.

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 63 ways as a sum of consecutive naturals, for example, 16374406 + ... + 16397684.

It is an arithmetic number, because the mean of its divisors is an integer number (10876602240).

Almost surely, 2^381450741555 is an apocalyptic number.

381450741555 is a deficient number, since it is larger than the sum of its proper divisors (314651801805).

381450741555 is a wasteful number, since it uses less digits than its factorization.

381450741555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28260.

The product of its (nonzero) digits is 1680000, while the sum is 48.

The spelling of 381450741555 in words is "three hundred eighty-one billion, four hundred fifty million, seven hundred forty-one thousand, five hundred fifty-five".