10918578950 has 72 divisors (see below), whose sum is σ = 22709465400. Its totient is φ = 3894082560.

The previous prime is 10918578947. The next prime is 10918578953. The reversal of 10918578950 is 5987581901.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (10918578947) and next prime (10918578953).

It is a junction number, because it is equal to n+sod(n) for n = 10918578892 and 10918578901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10918578953) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 254666 + ... + 294434.

Almost surely, 2^10918578950 is an apocalyptic number.

10918578950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10918578950 is an abundant number, since it is smaller than the sum of its proper divisors (11790886450).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10918578950 is a wasteful number, since it uses less digits than its factorization.

10918578950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39834 (or 39812 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 53.

The spelling of 10918578950 in words is "ten billion, nine hundred eighteen million, five hundred seventy-eight thousand, nine hundred fifty".