2154967895 has 8 divisors (see below), whose sum is σ = 2586383520. Its totient is φ = 1723692960.

The previous prime is 2154967891. The next prime is 2154967939. The reversal of 2154967895 is 5987694512.

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

It is not a de Polignac number, because 2154967895 - 2² = 2154967891 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2154967895.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2154967891) 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, 2126 + ... + 65684.

It is an arithmetic number, because the mean of its divisors is an integer number (323297940).

Almost surely, 2^2154967895 is an apocalyptic number.

2154967895 is a deficient number, since it is larger than the sum of its proper divisors (431415625).

2154967895 is an equidigital number, since it uses as much as digits as its factorization.

2154967895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70345.

The product of its digits is 5443200, while the sum is 56.

The square root of 2154967895 is about 46421.6317571884. The cubic root of 2154967895 is about 1291.6562055529.

The spelling of 2154967895 in words is "two billion, one hundred fifty-four million, nine hundred sixty-seven thousand, eight hundred ninety-five".