2798729955 has 32 divisors (see below), whose sum is σ = 5686310400. Its totient is φ = 1279418976.

The previous prime is 2798729929. The next prime is 2798729957. The reversal of 2798729955 is 5599278972.

It is not a de Polignac number, because 2798729955 - 2⁹ = 2798729443 is a prime.

It is a super-2 number, since 2×2798729955² = 15665778722028604050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a junction number, because it is equal to n+sod(n) for n = 2798729892 and 2798729901.

It is not an unprimeable number, because it can be changed into a prime (2798729957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1479865 + ... + 1481754.

It is an arithmetic number, because the mean of its divisors is an integer number (177697200).

Almost surely, 2^2798729955 is an apocalyptic number.

2798729955 is an abundant number, since it is smaller than the sum of its proper divisors (2887580445).

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

2798729955 is a wasteful number, since it uses less digits than its factorization.

2798729955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2961640 (or 2961634 counting only the distinct ones).

The product of its digits is 28576800, while the sum is 63.

The square root of 2798729955 is about 52903.0240629021. The cubic root of 2798729955 is about 1409.2466097434.

The spelling of 2798729955 in words is "two billion, seven hundred ninety-eight million, seven hundred twenty-nine thousand, nine hundred fifty-five".