1040026646412 has 288 divisors, whose sum is σ = 3113037957120. Its totient is φ = 289679639040.

The previous prime is 1040026646381. The next prime is 1040026646413. The reversal of 1040026646412 is 2146466200401.

1040026646412 is a `hidden beast` number, since 1 + 0 + 4 + 0 + 0 + 2 + 6 + 6 + 4 + 641 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1040026646413) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 252984237 + ... + 252988347.

Almost surely, 2^{1040026646412} is an apocalyptic number.

1040026646412 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 1040026646412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1556518978560).

1040026646412 is an abundant number, since it is smaller than the sum of its proper divisors (2073011310708).

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

1040026646412 is a wasteful number, since it uses less digits than its factorization.

1040026646412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5413 (or 5408 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The spelling of 1040026646412 in words is "one trillion, forty billion, twenty-six million, six hundred forty-six thousand, four hundred twelve".