2219696685 has 24 divisors (see below), whose sum is σ = 3980148120. Its totient is φ = 1143015552.

The previous prime is 2219696651. The next prime is 2219696693. The reversal of 2219696685 is 5866969122.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 530979849 + 1688716836 = 23043^2 + 41094^2 .

It is not a de Polignac number, because 2219696685 - 2⁶ = 2219696621 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 849154 + ... + 851763.

It is an arithmetic number, because the mean of its divisors is an integer number (165839505).

Almost surely, 2^2219696685 is an apocalyptic number.

It is an amenable number.

2219696685 is a deficient number, since it is larger than the sum of its proper divisors (1760451435).

2219696685 is a wasteful number, since it uses less digits than its factorization.

2219696685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1700957 (or 1700954 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 54.

The square root of 2219696685 is about 47113.6570964301. The cubic root of 2219696685 is about 1304.4613357963.

The spelling of 2219696685 in words is "two billion, two hundred nineteen million, six hundred ninety-six thousand, six hundred eighty-five".