2001262667 has 2 divisors, whose sum is σ = 2001262668. Its totient is φ = 2001262666.

The previous prime is 2001262663. The next prime is 2001262687. The reversal of 2001262667 is 7662621002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2001262667 - 2² = 2001262663 is a prime.

It is not a weakly prime, because it can be changed into another prime (2001262663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000631333 + 1000631334.

It is an arithmetic number, because the mean of its divisors is an integer number (1000631334).

Almost surely, 2^2001262667 is an apocalyptic number.

2001262667 is a deficient number, since it is larger than the sum of its proper divisors (1).

2001262667 is an equidigital number, since it uses as much as digits as its factorization.

2001262667 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 2001262667 is about 44735.4743687825. The cubic root of 2001262667 is about 1260.1861375718.

Adding to 2001262667 its reverse (7662621002), we get a palindrome (9663883669).

The spelling of 2001262667 in words is "two billion, one million, two hundred sixty-two thousand, six hundred sixty-seven".