5261531036698 has 24 divisors (see below), whose sum is σ = 8443646313588. Its totient is φ = 2458162997568.

The previous prime is 5261531036693. The next prime is 5261531036731. The reversal of 5261531036698 is 8966301351625.

It can be written as a sum of positive squares in 2 ways, for example, as 4652705082169 + 608825954529 = 2157013^2 + 780273^2 .

It is not an unprimeable number, because it can be changed into a prime (5261531036693) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49861261 + ... + 49966672.

Almost surely, 2^{5261531036698} is an apocalyptic number.

5261531036698 is a deficient number, since it is larger than the sum of its proper divisors (3182115276890).

5261531036698 is a wasteful number, since it uses less digits than its factorization.

5261531036698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99828046 (or 99828027 counting only the distinct ones).

The product of its (nonzero) digits is 6998400, while the sum is 55.

The spelling of 5261531036698 in words is "five trillion, two hundred sixty-one billion, five hundred thirty-one million, thirty-six thousand, six hundred ninety-eight".