2162943551 has 4 divisors (see below), whose sum is σ = 2198401704. Its totient is φ = 2127485400.

The previous prime is 2162943491. The next prime is 2162943553. The reversal of 2162943551 is 1553492612.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2162943551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2162943553) 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, 17728985 + ... + 17729106.

It is an arithmetic number, because the mean of its divisors is an integer number (549600426).

Almost surely, 2^2162943551 is an apocalyptic number.

2162943551 is a deficient number, since it is larger than the sum of its proper divisors (35458153).

2162943551 is an equidigital number, since it uses as much as digits as its factorization.

2162943551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35458152.

The product of its digits is 64800, while the sum is 38.

The square root of 2162943551 is about 46507.4569397210. The cubic root of 2162943551 is about 1293.2477408564.

The spelling of 2162943551 in words is "two billion, one hundred sixty-two million, nine hundred forty-three thousand, five hundred fifty-one".