1039391118612 has 384 divisors, whose sum is σ = 3564933120000. Its totient is φ = 253544048640.

The previous prime is 1039391118607. The next prime is 1039391118617. The reversal of 1039391118612 is 2168111939301.

1039391118612 is a `hidden beast` number, since 1 + 0 + 3 + 9 + 3 + 9 + 11 + 18 + 612 = 666.

It is an interprime number because it is at equal distance from previous prime (1039391118607) and next prime (1039391118617).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1039391118617) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 67709514 + ... + 67724862.

It is an arithmetic number, because the mean of its divisors is an integer number (9283680000).

Almost surely, 2^{1039391118612} is an apocalyptic number.

1039391118612 is a gapful number since it is divisible by the number (12) 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 1039391118612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1782466560000).

1039391118612 is an abundant number, since it is smaller than the sum of its proper divisors (2525542001388).

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

1039391118612 is a wasteful number, since it uses less digits than its factorization.

1039391118612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15876 (or 15868 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 45.

The spelling of 1039391118612 in words is "one trillion, thirty-nine billion, three hundred ninety-one million, one hundred eighteen thousand, six hundred twelve".