2067630649 has 4 divisors (see below), whose sum is σ = 2363006464. Its totient is φ = 1772254836.

The previous prime is 2067630641. The next prime is 2067630667. The reversal of 2067630649 is 9460367602.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2067630649 - 2³ = 2067630641 is a prime.

It is a super-2 number, since 2×2067630649² = 8550193001368322402, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2067630641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147687897 + ... + 147687910.

It is an arithmetic number, because the mean of its divisors is an integer number (590751616).

Almost surely, 2^2067630649 is an apocalyptic number.

It is an amenable number.

2067630649 is a deficient number, since it is larger than the sum of its proper divisors (295375815).

2067630649 is an equidigital number, since it uses as much as digits as its factorization.

2067630649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295375814.

The product of its (nonzero) digits is 326592, while the sum is 43.

The square root of 2067630649 is about 45471.2068126633. The cubic root of 2067630649 is about 1273.9654607343.

The spelling of 2067630649 in words is "two billion, sixty-seven million, six hundred thirty thousand, six hundred forty-nine".