381912531253 has 8 divisors (see below), whose sum is σ = 417371880096. Its totient is φ = 346576520400.

The previous prime is 381912531233. The next prime is 381912531257. The reversal of 381912531253 is 352135219183.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-381912531253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381912531257) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 30828018 + ... + 30840403.

It is an arithmetic number, because the mean of its divisors is an integer number (52171485012).

Almost surely, 2^381912531253 is an apocalyptic number.

It is an amenable number.

381912531253 is a deficient number, since it is larger than the sum of its proper divisors (35459348843).

381912531253 is a wasteful number, since it uses less digits than its factorization.

381912531253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61668995.

The product of its digits is 194400, while the sum is 43.

The spelling of 381912531253 in words is "three hundred eighty-one billion, nine hundred twelve million, five hundred thirty-one thousand, two hundred fifty-three".