2638153729 has 8 divisors (see below), whose sum is σ = 2697493760. Its totient is φ = 2579462496.

The previous prime is 2638153703. The next prime is 2638153741. The reversal of 2638153729 is 9273518362.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2638153729 - 2¹³ = 2638145537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2638153129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153972 + ... + 170245.

It is an arithmetic number, because the mean of its divisors is an integer number (337186720).

Almost surely, 2^2638153729 is an apocalyptic number.

It is an amenable number.

2638153729 is a deficient number, since it is larger than the sum of its proper divisors (59340031).

2638153729 is a wasteful number, since it uses less digits than its factorization.

2638153729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324399.

The product of its digits is 544320, while the sum is 46.

The square root of 2638153729 is about 51362.9606720641. The cubic root of 2638153729 is about 1381.7623861698.

The spelling of 2638153729 in words is "two billion, six hundred thirty-eight million, one hundred fifty-three thousand, seven hundred twenty-nine".