381888701453 has 4 divisors (see below), whose sum is σ = 436444230240. Its totient is φ = 327333172668.

The previous prime is 381888701429. The next prime is 381888701473. The reversal of 381888701453 is 354107888183.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 381888701453 - 2⁸ = 381888701197 is a prime.

It is a super-2 number, since 2×381888701453² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381888701473) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27277764383 + ... + 27277764396.

It is an arithmetic number, because the mean of its divisors is an integer number (109111057560).

Almost surely, 2^381888701453 is an apocalyptic number.

It is an amenable number.

381888701453 is a deficient number, since it is larger than the sum of its proper divisors (54555528787).

381888701453 is an equidigital number, since it uses as much as digits as its factorization.

381888701453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54555528786.

The product of its (nonzero) digits is 5160960, while the sum is 56.

The spelling of 381888701453 in words is "three hundred eighty-one billion, eight hundred eighty-eight million, seven hundred one thousand, four hundred fifty-three".