5511218378 has 32 divisors (see below), whose sum is σ = 8648156160. Its totient is φ = 2631024000.

The previous prime is 5511218333. The next prime is 5511218411. The reversal of 5511218378 is 8738121155.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3646643 + ... + 3648153.

It is an arithmetic number, because the mean of its divisors is an integer number (270254880).

Almost surely, 2^5511218378 is an apocalyptic number.

5511218378 is a deficient number, since it is larger than the sum of its proper divisors (3136937782).

5511218378 is a wasteful number, since it uses less digits than its factorization.

5511218378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2294.

The product of its digits is 67200, while the sum is 41.

The square root of 5511218378 is about 74237.5806313756. The cubic root of 5511218378 is about 1766.3734975179.

The spelling of 5511218378 in words is "five billion, five hundred eleven million, two hundred eighteen thousand, three hundred seventy-eight".