2465700021 has 20 divisors (see below), whose sum is σ = 3699441900. Its totient is φ = 1636609536.

The previous prime is 2465700001. The next prime is 2465700037. The reversal of 2465700021 is 1200075642.

2465700021 is a `hidden beast` number, since 2 + 4 + 657 + 0 + 0 + 0 + 2 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2098556100 + 367143921 = 45810^2 + 19161^2 .

It is not a de Polignac number, because 2465700021 - 2¹³ = 2465691829 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2465700001) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 47916 + ... + 85013.

It is an arithmetic number, because the mean of its divisors is an integer number (184972095).

Almost surely, 2^2465700021 is an apocalyptic number.

It is an amenable number.

2465700021 is a deficient number, since it is larger than the sum of its proper divisors (1233741879).

2465700021 is a wasteful number, since it uses less digits than its factorization.

2465700021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133170 (or 133161 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 2465700021 is about 49655.8155808562. The cubic root of 2465700021 is about 1350.9732389469.

Adding to 2465700021 its reverse (1200075642), we get a palindrome (3665775663).

The spelling of 2465700021 in words is "two billion, four hundred sixty-five million, seven hundred thousand, twenty-one".