4661615457 has 6 divisors (see below), whose sum is σ = 6733444562. Its totient is φ = 3107743632.

The previous prime is 4661615419. The next prime is 4661615467. The reversal of 4661615457 is 7545161664.

4661615457 is a `hidden beast` number, since 46 + 6 + 1 + 61 + 545 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 4359168576 + 302446881 = 66024^2 + 17391^2 .

It is not a de Polignac number, because 4661615457 - 2¹⁵ = 4661582689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4661615467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 258978628 + ... + 258978645.

Almost surely, 2^4661615457 is an apocalyptic number.

It is an amenable number.

4661615457 is a deficient number, since it is larger than the sum of its proper divisors (2071829105).

4661615457 is a wasteful number, since it uses less digits than its factorization.

4661615457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517957279 (or 517957276 counting only the distinct ones).

The product of its digits is 604800, while the sum is 45.

The square root of 4661615457 is about 68276.0240274725. The cubic root of 4661615457 is about 1670.4961601995.

The spelling of 4661615457 in words is "four billion, six hundred sixty-one million, six hundred fifteen thousand, four hundred fifty-seven".