381383077012 has 48 divisors (see below), whose sum is σ = 780997571200. Its totient is φ = 159547957632.

The previous prime is 381383076979. The next prime is 381383077021. The reversal of 381383077012 is 210770383183.

It is a super-2 number, since 2×381383077012² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a self number, because there is not a number n which added to its sum of digits gives 381383077012.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1823614 + ... + 2021962.

Almost surely, 2^381383077012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 381383077012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (390498785600).

381383077012 is an abundant number, since it is smaller than the sum of its proper divisors (399614494188).

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

381383077012 is a wasteful number, since it uses less digits than its factorization.

381383077012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200000 (or 199998 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 43.

The spelling of 381383077012 in words is "three hundred eighty-one billion, three hundred eighty-three million, seventy-seven thousand, twelve".