49026808261 has 6 divisors (see below), whose sum is σ = 49537459410. Its totient is φ = 48521367936.

The previous prime is 49026808253. The next prime is 49026808267. The reversal of 49026808261 is 16280862094.

It can be written as a sum of positive squares in 3 ways, for example, as 17589390625 + 31437417636 = 132625^2 + 177306^2 .

It is not a de Polignac number, because 49026808261 - 2³ = 49026808253 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 (49026808267) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2595906 + ... + 2614723.

It is an arithmetic number, because the mean of its divisors is an integer number (8256243235).

Almost surely, 2^49026808261 is an apocalyptic number.

It is an amenable number.

49026808261 is a deficient number, since it is larger than the sum of its proper divisors (510651149).

49026808261 is an frugal number, since it uses more digits than its factorization.

49026808261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5210823 (or 5210726 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 46.

The spelling of 49026808261 in words is "forty-nine billion, twenty-six million, eight hundred eight thousand, two hundred sixty-one".