12520640260492 has 192 divisors, whose sum is σ = 27803232656640. Its totient is φ = 4800798388224.

The previous prime is 12520640260423. The next prime is 12520640260507. The reversal of 12520640260492 is 29406204602521.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4476452038 + ... + 4476454834.

It is an arithmetic number, because the mean of its divisors is an integer number (144808503420).

Almost surely, 2^{12520640260492} 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 12520640260492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13901616328320).

12520640260492 is an abundant number, since it is smaller than the sum of its proper divisors (15282592396148).

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

12520640260492 is a wasteful number, since it uses less digits than its factorization.

12520640260492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4020 (or 4018 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 43.

The spelling of 12520640260492 in words is "twelve trillion, five hundred twenty billion, six hundred forty million, two hundred sixty thousand, four hundred ninety-two".