2604213993 has 16 divisors (see below), whose sum is σ = 3619106816. Its totient is φ = 1663819920.

The previous prime is 2604213943. The next prime is 2604214009. The reversal of 2604213993 is 3993124062.

It is not a de Polignac number, because 2604213993 - 2¹³ = 2604205801 is a prime.

It is the 51032-nd Hogben number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2604213943) by changing a digit.

It is a nontrivial repunit in base 51031.

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, 126355 + ... + 145512.

It is an arithmetic number, because the mean of its divisors is an integer number (226194176).

Almost surely, 2^2604213993 is an apocalyptic number.

It is an amenable number.

2604213993 is a deficient number, since it is larger than the sum of its proper divisors (1014892823).

2604213993 is a wasteful number, since it uses less digits than its factorization.

2604213993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272004.

The product of its (nonzero) digits is 69984, while the sum is 39.

The square root of 2604213993 is about 51031.5000073484. The cubic root of 2604213993 is about 1375.8113546215.

The spelling of 2604213993 in words is "two billion, six hundred four million, two hundred thirteen thousand, nine hundred ninety-three".