380861990912 has 108 divisors (see below), whose sum is σ = 825410857635. Its totient is φ = 175614885888.

The previous prime is 380861990911. The next prime is 380861990923. The reversal of 380861990912 is 219099168083.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 5 ways, for example, as 222572594176 + 158289396736 = 471776^2 + 397856^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=436384.

It is a super-2 number, since 2×380861990912² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (380861990911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 363070964 + ... + 363072012.

Almost surely, 2^380861990912 is an apocalyptic number.

380861990912 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 380861990912

380861990912 is an abundant number, since it is smaller than the sum of its proper divisors (444548866723).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

380861990912 is an frugal number, since it uses more digits than its factorization.

380861990912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2146 (or 1064 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 56.

The spelling of 380861990912 in words is "three hundred eighty billion, eight hundred sixty-one million, nine hundred ninety thousand, nine hundred twelve".