12589457477620 has 24 divisors (see below), whose sum is σ = 26936688265704. Its totient is φ = 4940768217216.

The previous prime is 12589457477599. The next prime is 12589457477651. The reversal of 12589457477620 is 2677475498521.

It can be written as a sum of positive squares in 4 ways, for example, as 5505790059364 + 7083667418256 = 2346442^2 + 2661516^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5938422279 + ... + 5938424398.

It is an arithmetic number, because the mean of its divisors is an integer number (1122362011071).

Almost surely, 2^{12589457477620} is an apocalyptic number.

12589457477620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12589457477620 is an abundant number, since it is smaller than the sum of its proper divisors (14347230788084).

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

12589457477620 is a wasteful number, since it uses less digits than its factorization.

12589457477620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11876846739 (or 11876846737 counting only the distinct ones).

The product of its (nonzero) digits is 237081600, while the sum is 67.

The spelling of 12589457477620 in words is "twelve trillion, five hundred eighty-nine billion, four hundred fifty-seven million, four hundred seventy-seven thousand, six hundred twenty".