2642125867626 has 96 divisors (see below), whose sum is σ = 6206050249920. Its totient is φ = 747643378944.

The previous prime is 2642125867567. The next prime is 2642125867649. The reversal of 2642125867626 is 6267685212462.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 156432190 + ... + 156449078.

It is an arithmetic number, because the mean of its divisors is an integer number (64646356770).

Almost surely, 2^{2642125867626} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2642125867626, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3103025124960).

2642125867626 is an abundant number, since it is smaller than the sum of its proper divisors (3563924382294).

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

2642125867626 is a wasteful number, since it uses less digits than its factorization.

2642125867626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21988 (or 21981 counting only the distinct ones).

The product of its digits is 23224320, while the sum is 57.

The spelling of 2642125867626 in words is "two trillion, six hundred forty-two billion, one hundred twenty-five million, eight hundred sixty-seven thousand, six hundred twenty-six".