11567761778378 has 16 divisors (see below), whose sum is σ = 18696061542816. Its totient is φ = 5336202079920.

The previous prime is 11567761778369. The next prime is 11567761778387. The reversal of 11567761778378 is 87387716776511.

It is an interprime number because it is at equal distance from previous prime (11567761778369) and next prime (11567761778387).

It is a super-2 number, since 2×11567761778378² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115152776 + ... + 115253187.

It is an arithmetic number, because the mean of its divisors is an integer number (1168503846426).

Almost surely, 2^{11567761778378} is an apocalyptic number.

11567761778378 is a deficient number, since it is larger than the sum of its proper divisors (7128299764438).

11567761778378 is a wasteful number, since it uses less digits than its factorization.

11567761778378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230407909.

The product of its digits is 580849920, while the sum is 74.

The spelling of 11567761778378 in words is "eleven trillion, five hundred sixty-seven billion, seven hundred sixty-one million, seven hundred seventy-eight thousand, three hundred seventy-eight".