5149666368 has 840 divisors, whose sum is σ = 20601614880. Its totient is φ = 1254113280.

The previous prime is 5149666363. The next prime is 5149666381. The reversal of 5149666368 is 8636669415.

It is a super-2 number, since 2×5149666368² = 53038127403420622848, which contains 22 as substring.

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

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (5149666363) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 53089296 + ... + 53089392.

It is an arithmetic number, because the mean of its divisors is an integer number (24525732).

Almost surely, 2^5149666368 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 5149666368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10300807440).

5149666368 is an abundant number, since it is smaller than the sum of its proper divisors (15451948512).

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

5149666368 is a wasteful number, since it uses less digits than its factorization.

5149666368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165 (or 139 counting only the distinct ones).

The product of its digits is 5598720, while the sum is 54.

The square root of 5149666368 is about 71761.1759100978. The cubic root of 5149666368 is about 1726.8702105637.

The spelling of 5149666368 in words is "five billion, one hundred forty-nine million, six hundred sixty-six thousand, three hundred sixty-eight".