2145200000465 has 48 divisors (see below), whose sum is σ = 2700475987968. Its totient is φ = 1635676560000.

The previous prime is 2145200000459. The next prime is 2145200000473. The reversal of 2145200000465 is 5640000025412.

It is not a de Polignac number, because 2145200000465 - 2²⁸ = 2144931565009 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 92681684 + ... + 92704826.

It is an arithmetic number, because the mean of its divisors is an integer number (56259916416).

Almost surely, 2^{2145200000465} is an apocalyptic number.

It is an amenable number.

2145200000465 is a deficient number, since it is larger than the sum of its proper divisors (555275987503).

2145200000465 is a wasteful number, since it uses less digits than its factorization.

2145200000465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23502 (or 23471 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 2145200000465 its reverse (5640000025412), we get a palindrome (7785200025877).

The spelling of 2145200000465 in words is "two trillion, one hundred forty-five billion, two hundred million, four hundred sixty-five", and thus it is an aban number.