5145681996 has 144 divisors (see below), whose sum is σ = 16174826304. Its totient is φ = 1343029248.

The previous prime is 5145681943. The next prime is 5145682039. The reversal of 5145681996 is 6991865415.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 309676 + ... + 325868.

Almost surely, 2^5145681996 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 5145681996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8087413152).

5145681996 is an abundant number, since it is smaller than the sum of its proper divisors (11029144308).

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

5145681996 is a wasteful number, since it uses less digits than its factorization.

5145681996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16320 (or 16315 counting only the distinct ones).

The product of its digits is 2332800, while the sum is 54.

The square root of 5145681996 is about 71733.4092038013. The cubic root of 5145681996 is about 1726.4247274263.

The spelling of 5145681996 in words is "five billion, one hundred forty-five million, six hundred eighty-one thousand, nine hundred ninety-six".