2153628865 has 16 divisors (see below), whose sum is σ = 2621678400. Its totient is φ = 1698199360.

The previous prime is 2153628863. The next prime is 2153628881. The reversal of 2153628865 is 5688263512.

It is not a de Polignac number, because 2153628865 - 2¹ = 2153628863 is a prime.

It is a super-2 number, since 2×2153628865² = 9276234576322376450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2153628863) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86562 + ... + 108628.

It is an arithmetic number, because the mean of its divisors is an integer number (163854900).

Almost surely, 2^2153628865 is an apocalyptic number.

It is an amenable number.

2153628865 is a deficient number, since it is larger than the sum of its proper divisors (468049535).

2153628865 is a wasteful number, since it uses less digits than its factorization.

2153628865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22352.

The product of its digits is 691200, while the sum is 46.

The square root of 2153628865 is about 46407.2070372695. The cubic root of 2153628865 is about 1291.3886184627.

The spelling of 2153628865 in words is "two billion, one hundred fifty-three million, six hundred twenty-eight thousand, eight hundred sixty-five".