4540577461 has 4 divisors (see below), whose sum is σ = 5189231392. Its totient is φ = 3891923532.

The previous prime is 4540577449. The next prime is 4540577467. The reversal of 4540577461 is 1647750454.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-4540577461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4540577467) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 324326955 + ... + 324326968.

It is an arithmetic number, because the mean of its divisors is an integer number (1297307848).

Almost surely, 2^4540577461 is an apocalyptic number.

It is an amenable number.

4540577461 is a deficient number, since it is larger than the sum of its proper divisors (648653931).

4540577461 is an equidigital number, since it uses as much as digits as its factorization.

4540577461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648653930.

The product of its (nonzero) digits is 470400, while the sum is 43.

The square root of 4540577461 is about 67383.8071126884. The cubic root of 4540577461 is about 1655.9111470147.

The spelling of 4540577461 in words is "four billion, five hundred forty million, five hundred seventy-seven thousand, four hundred sixty-one".