1158871245877 has 4 divisors (see below), whose sum is σ = 1158874657740. Its totient is φ = 1158867834016.

The previous prime is 1158871245869. The next prime is 1158871245907. The reversal of 1158871245877 is 7785421788511.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 130267577476 + 1028603668401 = 360926^2 + 1014201^2 .

It is a cyclic number.

It is not a de Polignac number, because 1158871245877 - 2³ = 1158871245869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1158871245677) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1132102 + ... + 1897207.

It is an arithmetic number, because the mean of its divisors is an integer number (289718664435).

Almost surely, 2^{1158871245877} is an apocalyptic number.

It is an amenable number.

1158871245877 is a deficient number, since it is larger than the sum of its proper divisors (3411863).

1158871245877 is an equidigital number, since it uses as much as digits as its factorization.

1158871245877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3411862.

The product of its digits is 35123200, while the sum is 64.

The spelling of 1158871245877 in words is "one trillion, one hundred fifty-eight billion, eight hundred seventy-one million, two hundred forty-five thousand, eight hundred seventy-seven".