158865864379 has 2 divisors, whose sum is σ = 158865864380. Its totient is φ = 158865864378.

The previous prime is 158865864373. The next prime is 158865864389. The reversal of 158865864379 is 973468568851.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 158865864379 - 2¹³ = 158865856187 is a prime.

It is not a weakly prime, because it can be changed into another prime (158865864373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79432932189 + 79432932190.

It is an arithmetic number, because the mean of its divisors is an integer number (79432932190).

Almost surely, 2^158865864379 is an apocalyptic number.

158865864379 is a deficient number, since it is larger than the sum of its proper divisors (1).

158865864379 is an equidigital number, since it uses as much as digits as its factorization.

158865864379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 348364800, while the sum is 70.

The spelling of 158865864379 in words is "one hundred fifty-eight billion, eight hundred sixty-five million, eight hundred sixty-four thousand, three hundred seventy-nine".