4544511540 has 24 divisors (see below), whose sum is σ = 12724632480. Its totient is φ = 1211869728.

The previous prime is 4544511487. The next prime is 4544511547. The reversal of 4544511540 is 451154454.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4544511547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37870870 + ... + 37870989.

It is an arithmetic number, because the mean of its divisors is an integer number (530193020).

Almost surely, 2^4544511540 is an apocalyptic number.

It is an amenable number.

4544511540 is an abundant number, since it is smaller than the sum of its proper divisors (8180120940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4544511540 is a wasteful number, since it uses less digits than its factorization.

4544511540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75741871 (or 75741869 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 33.

The square root of 4544511540 is about 67412.9923679405. The cubic root of 4544511540 is about 1656.3892510142.

Adding to 4544511540 its reverse (451154454), we get a palindrome (4995665994).

The spelling of 4544511540 in words is "four billion, five hundred forty-four million, five hundred eleven thousand, five hundred forty".