2646231005 has 32 divisors (see below), whose sum is σ = 3629145600. Its totient is φ = 1834560000.

The previous prime is 2646231001. The next prime is 2646231019. The reversal of 2646231005 is 5001326462.

It is not a de Polignac number, because 2646231005 - 2² = 2646231001 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2646231001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 115505 + ... + 136505.

It is an arithmetic number, because the mean of its divisors is an integer number (113410800).

Almost surely, 2^2646231005 is an apocalyptic number.

2646231005 is the 42002-nd pentagonal number.

It is an amenable number.

2646231005 is a deficient number, since it is larger than the sum of its proper divisors (982914595).

2646231005 is a wasteful number, since it uses less digits than its factorization.

2646231005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21125.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 2646231005 is about 51441.5299636393. The cubic root of 2646231005 is about 1383.1711371581.

Adding to 2646231005 its reverse (5001326462), we get a palindrome (7647557467).

The spelling of 2646231005 in words is "two billion, six hundred forty-six million, two hundred thirty-one thousand, five".