2077640609 has 8 divisors (see below), whose sum is σ = 2270060640. Its totient is φ = 1885811200.

The previous prime is 2077640597. The next prime is 2077640611. The reversal of 2077640609 is 9060467702.

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

It is a cyclic number.

It is not a de Polignac number, because 2077640609 - 2⁸ = 2077640353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2077640699) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140279 + ... + 154380.

It is an arithmetic number, because the mean of its divisors is an integer number (283757580).

Almost surely, 2^2077640609 is an apocalyptic number.

It is an amenable number.

2077640609 is a deficient number, since it is larger than the sum of its proper divisors (192420031).

2077640609 is a wasteful number, since it uses less digits than its factorization.

2077640609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295311.

The product of its (nonzero) digits is 127008, while the sum is 41.

The square root of 2077640609 is about 45581.1431295881. The cubic root of 2077640609 is about 1276.0180225718.

The spelling of 2077640609 in words is "two billion, seventy-seven million, six hundred forty thousand, six hundred nine".