12958502040 has 128 divisors (see below), whose sum is σ = 47121868800. Its totient is φ = 3141452160.

The previous prime is 12958502027. The next prime is 12958502041. The reversal of 12958502040 is 4020585921.

12958502040 is a `hidden beast` number, since 12 + 9 + 585 + 0 + 20 + 40 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 12958501986 and 12958502004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12958502041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 533512 + ... + 557271.

It is an arithmetic number, because the mean of its divisors is an integer number (368139600).

Almost surely, 2^12958502040 is an apocalyptic number.

12958502040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12958502040 is an abundant number, since it is smaller than the sum of its proper divisors (34163366760).

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

12958502040 is a wasteful number, since it uses less digits than its factorization.

12958502040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1090814 (or 1090804 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The spelling of 12958502040 in words is "twelve billion, nine hundred fifty-eight million, five hundred two thousand, forty".