9879368531 has 2 divisors, whose sum is σ = 9879368532. Its totient is φ = 9879368530.

The previous prime is 9879368519. The next prime is 9879368561. The reversal of 9879368531 is 1358639789.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9879368531 - 2⁶ = 9879368467 is a prime.

It is a super-2 number, since 2×9879368531² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (9879368561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4939684265 + 4939684266.

It is an arithmetic number, because the mean of its divisors is an integer number (4939684266).

Almost surely, 2^9879368531 is an apocalyptic number.

9879368531 is a deficient number, since it is larger than the sum of its proper divisors (1).

9879368531 is an equidigital number, since it uses as much as digits as its factorization.

9879368531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9797760, while the sum is 59.

The square root of 9879368531 is about 99395.0126062671. The cubic root of 9879368531 is about 2145.7365326016.

The spelling of 9879368531 in words is "nine billion, eight hundred seventy-nine million, three hundred sixty-eight thousand, five hundred thirty-one".