381054811418 has 4 divisors (see below), whose sum is σ = 571582217130. Its totient is φ = 190527405708.

The previous prime is 381054811411. The next prime is 381054811427. The reversal of 381054811418 is 814118450183.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 219798755929 + 161256055489 = 468827^2 + 401567^2 .

It is not an unprimeable number, because it can be changed into a prime (381054811411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95263702853 + ... + 95263702856.

Almost surely, 2^381054811418 is an apocalyptic number.

381054811418 is a deficient number, since it is larger than the sum of its proper divisors (190527405712).

381054811418 is a wasteful number, since it uses less digits than its factorization.

381054811418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190527405711.

The product of its (nonzero) digits is 122880, while the sum is 44.

The spelling of 381054811418 in words is "three hundred eighty-one billion, fifty-four million, eight hundred eleven thousand, four hundred eighteen".