10878958509 has 4 divisors (see below), whose sum is σ = 14505278016. Its totient is φ = 7252639004.

The previous prime is 10878958507. The next prime is 10878958553. The reversal of 10878958509 is 90585987801.

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 a cyclic number.

It is not a de Polignac number, because 10878958509 - 2¹ = 10878958507 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10878958507) 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, 1813159749 + ... + 1813159754.

It is an arithmetic number, because the mean of its divisors is an integer number (3626319504).

Almost surely, 2^10878958509 is an apocalyptic number.

It is an amenable number.

10878958509 is a deficient number, since it is larger than the sum of its proper divisors (3626319507).

10878958509 is an equidigital number, since it uses as much as digits as its factorization.

10878958509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3626319506.

The product of its (nonzero) digits is 7257600, while the sum is 60.

The spelling of 10878958509 in words is "ten billion, eight hundred seventy-eight million, nine hundred fifty-eight thousand, five hundred nine".