2642536461 has 4 divisors (see below), whose sum is σ = 3523381952. Its totient is φ = 1761690972.

The previous prime is 2642536439. The next prime is 2642536483. The reversal of 2642536461 is 1646352462.

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 an interprime number because it is at equal distance from previous prime (2642536439) and next prime (2642536483).

It is not a de Polignac number, because 2642536461 - 2¹⁹ = 2642012173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2642535461) 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, 440422741 + ... + 440422746.

It is an arithmetic number, because the mean of its divisors is an integer number (880845488).

Almost surely, 2^2642536461 is an apocalyptic number.

It is an amenable number.

2642536461 is a deficient number, since it is larger than the sum of its proper divisors (880845491).

2642536461 is an equidigital number, since it uses as much as digits as its factorization.

2642536461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880845490.

The product of its digits is 207360, while the sum is 39.

The square root of 2642536461 is about 51405.6072914230. The cubic root of 2642536461 is about 1382.5271310650.

The spelling of 2642536461 in words is "two billion, six hundred forty-two million, five hundred thirty-six thousand, four hundred sixty-one".