2605112662461 has 4 divisors (see below), whose sum is σ = 3473483549952. Its totient is φ = 1736741774972.

The previous prime is 2605112662441. The next prime is 2605112662463. The reversal of 2605112662461 is 1642662115062.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2605112662461 - 2¹¹ = 2605112660413 is a prime.

It is a super-2 number, since 2×2605112662461² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2605112662463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 434185443741 + ... + 434185443746.

It is an arithmetic number, because the mean of its divisors is an integer number (868370887488).

Almost surely, 2^{2605112662461} is an apocalyptic number.

It is an amenable number.

2605112662461 is a deficient number, since it is larger than the sum of its proper divisors (868370887491).

2605112662461 is an equidigital number, since it uses as much as digits as its factorization.

2605112662461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 868370887490.

The product of its (nonzero) digits is 207360, while the sum is 42.

The spelling of 2605112662461 in words is "two trillion, six hundred five billion, one hundred twelve million, six hundred sixty-two thousand, four hundred sixty-one".