11172567278 has 16 divisors (see below), whose sum is σ = 17318393136. Its totient is φ = 5402342400.

The previous prime is 11172567257. The next prime is 11172567299. The reversal of 11172567278 is 87276527111.

It is an interprime number because it is at equal distance from previous prime (11172567257) and next prime (11172567299).

It is a congruent number.

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, 634451 + ... + 651822.

It is an arithmetic number, because the mean of its divisors is an integer number (1082399571).

Almost surely, 2^11172567278 is an apocalyptic number.

11172567278 is a deficient number, since it is larger than the sum of its proper divisors (6145825858).

11172567278 is a wasteful number, since it uses less digits than its factorization.

11172567278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1286419.

The product of its digits is 329280, while the sum is 47.

The spelling of 11172567278 in words is "eleven billion, one hundred seventy-two million, five hundred sixty-seven thousand, two hundred seventy-eight".