2649159136 has 192 divisors, whose sum is σ = 6169540608. Its totient is φ = 1109864448.

The previous prime is 2649159133. The next prime is 2649159187. The reversal of 2649159136 is 6319519462.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2649159133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19336860 + ... + 19336996.

It is an arithmetic number, because the mean of its divisors is an integer number (32133024).

Almost surely, 2^2649159136 is an apocalyptic number.

2649159136 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2649159136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3084770304).

2649159136 is an abundant number, since it is smaller than the sum of its proper divisors (3520381472).

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

2649159136 is a wasteful number, since it uses less digits than its factorization.

2649159136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273 (or 265 counting only the distinct ones).

The product of its digits is 349920, while the sum is 46.

The square root of 2649159136 is about 51469.9828638013. The cubic root of 2649159136 is about 1383.6811220312.

The spelling of 2649159136 in words is "two billion, six hundred forty-nine million, one hundred fifty-nine thousand, one hundred thirty-six".