4465128987 has 24 divisors (see below), whose sum is σ = 7199594688. Its totient is φ = 2643202800.

The previous prime is 4465128977. The next prime is 4465129037. The reversal of 4465128987 is 7898215644.

It is a happy number.

4465128987 is a `hidden beast` number, since 4 + 46 + 512 + 8 + 9 + 87 = 666.

It is not a de Polignac number, because 4465128987 - 2¹⁰ = 4465127963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4465128907) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 520189 + ... + 528702.

It is an arithmetic number, because the mean of its divisors is an integer number (299983112).

Almost surely, 2^4465128987 is an apocalyptic number.

4465128987 is a deficient number, since it is larger than the sum of its proper divisors (2734465701).

4465128987 is a wasteful number, since it uses less digits than its factorization.

4465128987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1048951 (or 1048948 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 54.

The square root of 4465128987 is about 66821.6206552939. The cubic root of 4465128987 is about 1646.6880596304.

The spelling of 4465128987 in words is "four billion, four hundred sixty-five million, one hundred twenty-eight thousand, nine hundred eighty-seven".