1158247866278 has 32 divisors (see below), whose sum is σ = 1814057223552. Its totient is φ = 554115328000.

The previous prime is 1158247866239. The next prime is 1158247866287. The reversal of 1158247866278 is 8726687428511.

It is a congruent number.

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, 10999478 + ... + 11104278.

It is an arithmetic number, because the mean of its divisors is an integer number (56689288236).

Almost surely, 2^{1158247866278} is an apocalyptic number.

1158247866278 is a deficient number, since it is larger than the sum of its proper divisors (655809357274).

1158247866278 is a wasteful number, since it uses less digits than its factorization.

1158247866278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107440.

The product of its digits is 72253440, while the sum is 65.

The spelling of 1158247866278 in words is "one trillion, one hundred fifty-eight billion, two hundred forty-seven million, eight hundred sixty-six thousand, two hundred seventy-eight".