5451144540 has 48 divisors (see below), whose sum is σ = 15295150080. Its totient is φ = 1450596160.

The previous prime is 5451144533. The next prime is 5451144541. The reversal of 5451144540 is 454411545.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5451144541) 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, 66096 + ... + 123575.

It is an arithmetic number, because the mean of its divisors is an integer number (318648960).

Almost surely, 2^5451144540 is an apocalyptic number.

It is an amenable number.

5451144540 is an abundant number, since it is smaller than the sum of its proper divisors (9844005540).

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

5451144540 is a wasteful number, since it uses less digits than its factorization.

5451144540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190162 (or 190160 counting only the distinct ones).

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

The square root of 5451144540 is about 73831.8666972467. The cubic root of 5451144540 is about 1759.9320458439.

The spelling of 5451144540 in words is "five billion, four hundred fifty-one million, one hundred forty-four thousand, five hundred forty".