12946025040 has 80 divisors (see below), whose sum is σ = 43219817088. Its totient is φ = 3186713088.

The previous prime is 12946025033. The next prime is 12946025047. The reversal of 12946025040 is 4052064921.

It is an interprime number because it is at equal distance from previous prime (12946025033) and next prime (12946025047).

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 12946024992 and 12946025010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12946025047) 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 15 ways as a sum of consecutive naturals, for example, 2071564 + ... + 2077803.

Almost surely, 2^12946025040 is an apocalyptic number.

12946025040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12946025040 is an abundant number, since it is smaller than the sum of its proper divisors (30273792048).

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

12946025040 is a wasteful number, since it uses less digits than its factorization.

12946025040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4149396 (or 4149390 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

Adding to 12946025040 its reverse (4052064921), we get a palindrome (16998089961).

The spelling of 12946025040 in words is "twelve billion, nine hundred forty-six million, twenty-five thousand, forty".