8434736261 has 16 divisors (see below), whose sum is σ = 9679979904. Its totient is φ = 7199622144.

The previous prime is 8434736237. The next prime is 8434736281. The reversal of 8434736261 is 1626374348.

It is a cyclic number.

It is not a de Polignac number, because 8434736261 - 2¹⁸ = 8434474117 is a prime.

It is a super-2 number, since 2×8434736261² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8434736281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2313506 + ... + 2317148.

It is an arithmetic number, because the mean of its divisors is an integer number (604998744).

Almost surely, 2^8434736261 is an apocalyptic number.

It is an amenable number.

8434736261 is a deficient number, since it is larger than the sum of its proper divisors (1245243643).

8434736261 is a wasteful number, since it uses less digits than its factorization.

8434736261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4940.

The product of its digits is 580608, while the sum is 44.

The square root of 8434736261 is about 91840.8202326177. The cubic root of 8434736261 is about 2035.5909084143.

The spelling of 8434736261 in words is "eight billion, four hundred thirty-four million, seven hundred thirty-six thousand, two hundred sixty-one".