158354412819 has 4 divisors (see below), whose sum is σ = 211139217096. Its totient is φ = 105569608544.

The previous prime is 158354412817. The next prime is 158354412829. The reversal of 158354412819 is 918214453851.

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

It is a cyclic number.

It is not a de Polignac number, because 158354412819 - 2¹ = 158354412817 is a prime.

It is a super-2 number, since 2×158354412819² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (158354412817) 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, 26392402134 + ... + 26392402139.

It is an arithmetic number, because the mean of its divisors is an integer number (52784804274).

Almost surely, 2^158354412819 is an apocalyptic number.

158354412819 is a deficient number, since it is larger than the sum of its proper divisors (52784804277).

158354412819 is an equidigital number, since it uses as much as digits as its factorization.

158354412819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52784804276.

The product of its digits is 1382400, while the sum is 51.

The spelling of 158354412819 in words is "one hundred fifty-eight billion, three hundred fifty-four million, four hundred twelve thousand, eight hundred nineteen".