2812567961 has 8 divisors (see below), whose sum is σ = 3219734400. Its totient is φ = 2406744288.

The previous prime is 2812567921. The next prime is 2812567993. The reversal of 2812567961 is 1697652182.

It is a happy number.

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 2812567961 - 2¹⁸ = 2812305817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2812567921) 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, 331196 + ... + 339581.

It is an arithmetic number, because the mean of its divisors is an integer number (402466800).

Almost surely, 2^2812567961 is an apocalyptic number.

It is an amenable number.

2812567961 is a deficient number, since it is larger than the sum of its proper divisors (407166439).

2812567961 is an equidigital number, since it uses as much as digits as its factorization.

2812567961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671383.

The product of its digits is 362880, while the sum is 47.

The square root of 2812567961 is about 53033.6493275731. The cubic root of 2812567961 is about 1411.5654127854.

The spelling of 2812567961 in words is "two billion, eight hundred twelve million, five hundred sixty-seven thousand, nine hundred sixty-one".