2919985455 has 16 divisors (see below), whose sum is σ = 4917870720. Its totient is φ = 1475360928.

The previous prime is 2919985363. The next prime is 2919985459. The reversal of 2919985455 is 5545899192.

It is not a de Polignac number, because 2919985455 - 2²⁴ = 2903208239 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a junction number, because it is equal to n+sod(n) for n = 2919985395 and 2919985404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2919985459) 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 15 ways as a sum of consecutive naturals, for example, 5122497 + ... + 5123066.

It is an arithmetic number, because the mean of its divisors is an integer number (307366920).

Almost surely, 2^2919985455 is an apocalyptic number.

2919985455 is a deficient number, since it is larger than the sum of its proper divisors (1997885265).

2919985455 is a wasteful number, since it uses less digits than its factorization.

2919985455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10245590.

The product of its digits is 5832000, while the sum is 57.

The square root of 2919985455 is about 54036.8897606071. The cubic root of 2919985455 is about 1429.3115265432.

The spelling of 2919985455 in words is "two billion, nine hundred nineteen million, nine hundred eighty-five thousand, four hundred fifty-five".