192158540819 has 4 divisors (see below), whose sum is σ = 219609760944. Its totient is φ = 164707320696.

The previous prime is 192158540813. The next prime is 192158540863. The reversal of 192158540819 is 918045851291.

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 192158540819 - 2²⁰ = 192157492243 is a prime.

It is a super-2 number, since 2×192158540819² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (192158540813) 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, 13725610052 + ... + 13725610065.

It is an arithmetic number, because the mean of its divisors is an integer number (54902440236).

Almost surely, 2^192158540819 is an apocalyptic number.

192158540819 is a deficient number, since it is larger than the sum of its proper divisors (27451220125).

192158540819 is an equidigital number, since it uses as much as digits as its factorization.

192158540819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27451220124.

The product of its (nonzero) digits is 1036800, while the sum is 53.

The spelling of 192158540819 in words is "one hundred ninety-two billion, one hundred fifty-eight million, five hundred forty thousand, eight hundred nineteen".