12642522260 has 24 divisors (see below), whose sum is σ = 28111020840. Its totient is φ = 4759537664.

The previous prime is 12642522253. The next prime is 12642522281. The reversal of 12642522260 is 6222524621.

It can be written as a sum of positive squares in 4 ways, for example, as 1784048644 + 10858473616 = 42238^2 + 104204^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18591605 + ... + 18592284.

It is an arithmetic number, because the mean of its divisors is an integer number (1171292535).

Almost surely, 2^12642522260 is an apocalyptic number.

12642522260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12642522260 is an abundant number, since it is smaller than the sum of its proper divisors (15468498580).

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

12642522260 is a wasteful number, since it uses less digits than its factorization.

12642522260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37183915 (or 37183913 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

The spelling of 12642522260 in words is "twelve billion, six hundred forty-two million, five hundred twenty-two thousand, two hundred sixty".