5143778640 has 1200 divisors, whose sum is σ = 24513895296. Its totient is φ = 970444800.

The previous prime is 5143778603. The next prime is 5143778657. The reversal of 5143778640 is 468773415.

5143778640 is a `hidden beast` number, since 514 + 3 + 7 + 78 + 64 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 84324210 + ... + 84324270.

Almost surely, 2^5143778640 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5143778640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12256947648).

5143778640 is an abundant number, since it is smaller than the sum of its proper divisors (19370116656).

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

5143778640 is a wasteful number, since it uses less digits than its factorization.

5143778640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130 (or 102 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 45.

The square root of 5143778640 is about 71720.1411041557. The cubic root of 5143778640 is about 1726.2118365593.

The spelling of 5143778640 in words is "five billion, one hundred forty-three million, seven hundred seventy-eight thousand, six hundred forty".