2071678990 has 16 divisors (see below), whose sum is σ = 3948376752. Its totient is φ = 779926144.

The previous prime is 2071678919. The next prime is 2071678993. The reversal of 2071678990 is 998761702.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2071678993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6093004 + ... + 6093343.

It is an arithmetic number, because the mean of its divisors is an integer number (246773547).

Almost surely, 2^2071678990 is an apocalyptic number.

2071678990 is a deficient number, since it is larger than the sum of its proper divisors (1876697762).

2071678990 is a wasteful number, since it uses less digits than its factorization.

2071678990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12186371.

The product of its (nonzero) digits is 381024, while the sum is 49.

The square root of 2071678990 is about 45515.7004779669. The cubic root of 2071678990 is about 1274.7963770683.

The spelling of 2071678990 in words is "two billion, seventy-one million, six hundred seventy-eight thousand, nine hundred ninety".