381223454087 has 32 divisors (see below), whose sum is σ = 462925332480. Its totient is φ = 307056083040.

The previous prime is 381223454077. The next prime is 381223454141. The reversal of 381223454087 is 780454322183.

It is not a de Polignac number, because 381223454087 - 2³⁴ = 364043584903 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381223454047) 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, 1148114 + ... + 1442432.

It is an arithmetic number, because the mean of its divisors is an integer number (14466416640).

Almost surely, 2^381223454087 is an apocalyptic number.

381223454087 is a deficient number, since it is larger than the sum of its proper divisors (81701878393).

381223454087 is a wasteful number, since it uses less digits than its factorization.

381223454087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294531.

The product of its (nonzero) digits is 1290240, while the sum is 47.

The spelling of 381223454087 in words is "three hundred eighty-one billion, two hundred twenty-three million, four hundred fifty-four thousand, eighty-seven".