2312635205405 has 48 divisors (see below), whose sum is σ = 3238675539840. Its totient is φ = 1580689692288.

The previous prime is 2312635205393. The next prime is 2312635205407. The reversal of 2312635205405 is 5045025362132.

It is not a de Polignac number, because 2312635205405 - 2⁶ = 2312635205341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2312635205407) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 269753699 + ... + 269762271.

It is an arithmetic number, because the mean of its divisors is an integer number (67472407080).

Almost surely, 2^{2312635205405} is an apocalyptic number.

It is an amenable number.

2312635205405 is a deficient number, since it is larger than the sum of its proper divisors (926040334435).

2312635205405 is a wasteful number, since it uses less digits than its factorization.

2312635205405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12018 (or 12011 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 38.

The spelling of 2312635205405 in words is "two trillion, three hundred twelve billion, six hundred thirty-five million, two hundred five thousand, four hundred five".