2729261656 has 16 divisors (see below), whose sum is σ = 5582580840. Its totient is φ = 1240573440.

The previous prime is 2729261653. The next prime is 2729261657. The reversal of 2729261656 is 6561629272.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2729261653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15507081 + ... + 15507256.

Almost surely, 2^2729261656 is an apocalyptic number.

It is an amenable number.

2729261656 is an abundant number, since it is smaller than the sum of its proper divisors (2853319184).

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

2729261656 is a wasteful number, since it uses less digits than its factorization.

2729261656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31014354 (or 31014350 counting only the distinct ones).

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

The square root of 2729261656 is about 52242.3358589564. The cubic root of 2729261656 is about 1397.4889778669.

The spelling of 2729261656 in words is "two billion, seven hundred twenty-nine million, two hundred sixty-one thousand, six hundred fifty-six".