2601386729 has 16 divisors (see below), whose sum is σ = 2756073600. Its totient is φ = 2448539136.

The previous prime is 2601386701. The next prime is 2601386743. The reversal of 2601386729 is 9276831062.

It is a cyclic number.

It is not a de Polignac number, because 2601386729 - 2¹² = 2601382633 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2601386729.

It is not an unprimeable number, because it can be changed into a prime (2601386129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2799737 + ... + 2800665.

It is an arithmetic number, because the mean of its divisors is an integer number (172254600).

Almost surely, 2^2601386729 is an apocalyptic number.

It is an amenable number.

2601386729 is a deficient number, since it is larger than the sum of its proper divisors (154686871).

2601386729 is a wasteful number, since it uses less digits than its factorization.

2601386729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1744.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 2601386729 is about 51003.7913198617. The cubic root of 2601386729 is about 1375.3132913004.

The spelling of 2601386729 in words is "two billion, six hundred one million, three hundred eighty-six thousand, seven hundred twenty-nine".