5144782986 has 64 divisors (see below), whose sum is σ = 13095648000. Its totient is φ = 1466615808.

The previous prime is 5144782963. The next prime is 5144782987. The reversal of 5144782986 is 6892874415.

It is a happy number.

5144782986 is a `hidden beast` number, since 514 + 47 + 8 + 2 + 9 + 86 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (5144782987) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 154566 + ... + 184878.

It is an arithmetic number, because the mean of its divisors is an integer number (204619500).

Almost surely, 2^5144782986 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5144782986, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6547824000).

5144782986 is an abundant number, since it is smaller than the sum of its proper divisors (7950865014).

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

5144782986 is a wasteful number, since it uses less digits than its factorization.

5144782986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30780 (or 30774 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 54.

The square root of 5144782986 is about 71727.1426030621. The cubic root of 5144782986 is about 1726.3241794657.

The spelling of 5144782986 in words is "five billion, one hundred forty-four million, seven hundred eighty-two thousand, nine hundred eighty-six".