1012382617428 has 144 divisors (see below), whose sum is σ = 3251236258816. Its totient is φ = 258389015040.

The previous prime is 1012382617427. The next prime is 1012382617447. The reversal of 1012382617428 is 8247162832101.

1012382617428 is a `hidden beast` number, since 1 + 0 + 1 + 2 + 3 + 8 + 2 + 617 + 4 + 28 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012382617427) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4882801 + ... + 5085912.

Almost surely, 2^{1012382617428} is an apocalyptic number.

1012382617428 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1012382617428 is an abundant number, since it is smaller than the sum of its proper divisors (2238853641388).

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

1012382617428 is a wasteful number, since it uses less digits than its factorization.

1012382617428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9968774 (or 9968769 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The spelling of 1012382617428 in words is "one trillion, twelve billion, three hundred eighty-two million, six hundred seventeen thousand, four hundred twenty-eight".