2685540099 has 64 divisors (see below), whose sum is σ = 4465290240. Its totient is φ = 1414533120.

The previous prime is 2685540079. The next prime is 2685540149. The reversal of 2685540099 is 9900455862.

It is not a de Polignac number, because 2685540099 - 2¹³ = 2685531907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2685540019) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 370599 + ... + 377775.

It is an arithmetic number, because the mean of its divisors is an integer number (69770160).

Almost surely, 2^2685540099 is an apocalyptic number.

2685540099 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

2685540099 is a deficient number, since it is larger than the sum of its proper divisors (1779750141).

2685540099 is a wasteful number, since it uses less digits than its factorization.

2685540099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7260.

The product of its (nonzero) digits is 777600, while the sum is 48.

The square root of 2685540099 is about 51822.1969719540. The cubic root of 2685540099 is about 1389.9863875623.

The spelling of 2685540099 in words is "two billion, six hundred eighty-five million, five hundred forty thousand, ninety-nine".