2381616465 has 16 divisors (see below), whose sum is σ = 4011144000. Its totient is φ = 1203342912.

The previous prime is 2381616451. The next prime is 2381616467. The reversal of 2381616465 is 5646161832.

2381616465 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2381616465 - 2⁴ = 2381616449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2381616467) 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, 4177990 + ... + 4178559.

It is an arithmetic number, because the mean of its divisors is an integer number (250696500).

Almost surely, 2^2381616465 is an apocalyptic number.

It is an amenable number.

2381616465 is a deficient number, since it is larger than the sum of its proper divisors (1629527535).

2381616465 is a wasteful number, since it uses less digits than its factorization.

2381616465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8356576.

The product of its digits is 207360, while the sum is 42.

The square root of 2381616465 is about 48801.8080095400. The cubic root of 2381616465 is about 1335.4386500578.

The spelling of 2381616465 in words is "two billion, three hundred eighty-one million, six hundred sixteen thousand, four hundred sixty-five".