380612939281 has 4 divisors (see below), whose sum is σ = 392890776064. Its totient is φ = 368335102500.

The previous prime is 380612939279. The next prime is 380612939321. The reversal of 380612939281 is 182939216083.

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, and also an emirpimes, since its reverse is a distinct semiprime: 182939216083 = 13 ⋅14072247391.

It is not a de Polignac number, because 380612939281 - 2¹ = 380612939279 is a prime.

It is a super-2 number, since 2×380612939281² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (380612939381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6138918345 + ... + 6138918406.

It is an arithmetic number, because the mean of its divisors is an integer number (98222694016).

Almost surely, 2^380612939281 is an apocalyptic number.

380612939281 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

380612939281 is a deficient number, since it is larger than the sum of its proper divisors (12277836783).

380612939281 is a wasteful number, since it uses less digits than its factorization.

380612939281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12277836782.

The product of its (nonzero) digits is 1119744, while the sum is 52.

The spelling of 380612939281 in words is "three hundred eighty billion, six hundred twelve million, nine hundred thirty-nine thousand, two hundred eighty-one".