2078653684 has 12 divisors (see below), whose sum is σ = 3687475204. Its totient is φ = 1025089344.

The previous prime is 2078653663. The next prime is 2078653729. The reversal of 2078653684 is 4863568702.

It can be written as a sum of positive squares in 2 ways, for example, as 1128288100 + 950365584 = 33590^2 + 30828^2 .

It is a super-2 number, since 2×2078653684² = 8641602276013543712, which contains 22 as substring.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3559047 + ... + 3559630.

Almost surely, 2^2078653684 is an apocalyptic number.

It is an amenable number.

2078653684 is a deficient number, since it is larger than the sum of its proper divisors (1608821520).

2078653684 is a wasteful number, since it uses less digits than its factorization.

2078653684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7118754 (or 7118752 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 49.

The square root of 2078653684 is about 45592.2546492274. The cubic root of 2078653684 is about 1276.2253879039.

The spelling of 2078653684 in words is "two billion, seventy-eight million, six hundred fifty-three thousand, six hundred eighty-four".