2061509986 has 8 divisors (see below), whose sum is σ = 3108455424. Its totient is φ = 1025358180.

The previous prime is 2061509939. The next prime is 2061510001. The reversal of 2061509986 is 6899051602.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 2697930 + ... + 2698693.

It is an arithmetic number, because the mean of its divisors is an integer number (388556928).

Almost surely, 2^2061509986 is an apocalyptic number.

2061509986 is a deficient number, since it is larger than the sum of its proper divisors (1046945438).

2061509986 is a wasteful number, since it uses less digits than its factorization.

2061509986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5396816.

The product of its (nonzero) digits is 233280, while the sum is 46.

The square root of 2061509986 is about 45403.8543077567. The cubic root of 2061509986 is about 1272.7071412038.

The spelling of 2061509986 in words is "two billion, sixty-one million, five hundred nine thousand, nine hundred eighty-six".