2112642640626 has 16 divisors (see below), whose sum is σ = 4828897464384. Its totient is φ = 603612183024.

The previous prime is 2112642640621. The next prime is 2112642640673. The reversal of 2112642640626 is 6260462462112.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 50301015253 = 2112642640626 / (2 + 1 + 1 + 2 + 6 + 4 + 2 + 6 + 4 + 0 + 6 + 2 + 6).

It is not an unprimeable number, because it can be changed into a prime (2112642640621) by changing a digit.

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, 25150507585 + ... + 25150507668.

It is an arithmetic number, because the mean of its divisors is an integer number (301806091524).

Almost surely, 2^{2112642640626} is an apocalyptic number.

2112642640626 is an abundant number, since it is smaller than the sum of its proper divisors (2716254823758).

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

2112642640626 is a wasteful number, since it uses less digits than its factorization.

2112642640626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50301015265.

The product of its (nonzero) digits is 331776, while the sum is 42.

The spelling of 2112642640626 in words is "two trillion, one hundred twelve billion, six hundred forty-two million, six hundred forty thousand, six hundred twenty-six".