4219648687686 has 16 divisors (see below), whose sum is σ = 8505748537344. Its totient is φ = 1395474368904.

The previous prime is 4219648687643. The next prime is 4219648687739. The reversal of 4219648687686 is 6867868469124.

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, 2768797590 + ... + 2768799113.

It is an arithmetic number, because the mean of its divisors is an integer number (531609283584).

Almost surely, 2^{4219648687686} is an apocalyptic number.

4219648687686 is an abundant number, since it is smaller than the sum of its proper divisors (4286099849658).

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

4219648687686 is a wasteful number, since it uses less digits than its factorization.

4219648687686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5537596835.

The product of its digits is 1337720832, while the sum is 75.

The spelling of 4219648687686 in words is "four trillion, two hundred nineteen billion, six hundred forty-eight million, six hundred eighty-seven thousand, six hundred eighty-six".