2606421621246 has 16 divisors (see below), whose sum is σ = 5213069878800. Its totient is φ = 868769434368.

The previous prime is 2606421621229. The next prime is 2606421621247. The reversal of 2606421621246 is 6421261246062.

It is a junction number, because it is equal to n+sod(n) for n = 2606421621198 and 2606421621207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2606421621247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9293491 + ... + 9569838.

It is an arithmetic number, because the mean of its divisors is an integer number (325816867425).

Almost surely, 2^{2606421621246} is an apocalyptic number.

2606421621246 is an abundant number, since it is smaller than the sum of its proper divisors (2606648257554).

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

2606421621246 is a wasteful number, since it uses less digits than its factorization.

2606421621246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18886363.

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

The spelling of 2606421621246 in words is "two trillion, six hundred six billion, four hundred twenty-one million, six hundred twenty-one thousand, two hundred forty-six".