2061613786 has 16 divisors (see below), whose sum is σ = 3247438464. Its totient is φ = 979705584.

The previous prime is 2061613777. The next prime is 2061613787. The reversal of 2061613786 is 6873161602.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2061613787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135510 + ... + 149953.

It is an arithmetic number, because the mean of its divisors is an integer number (202964904).

Almost surely, 2^2061613786 is an apocalyptic number.

2061613786 is a deficient number, since it is larger than the sum of its proper divisors (1185824678).

2061613786 is a wasteful number, since it uses less digits than its factorization.

2061613786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285645.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 2061613786 is about 45404.9973681312. The cubic root of 2061613786 is about 1272.7285017252.

The spelling of 2061613786 in words is "two billion, sixty-one million, six hundred thirteen thousand, seven hundred eighty-six".