158492993609 has 2 divisors, whose sum is σ = 158492993610. Its totient is φ = 158492993608.

The previous prime is 158492993597. The next prime is 158492993663. The reversal of 158492993609 is 906399294851.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 153764368384 + 4728625225 = 392128^2 + 68765^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-158492993609 is a prime.

It is not a weakly prime, because it can be changed into another prime (158492993909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79246496804 + 79246496805.

It is an arithmetic number, because the mean of its divisors is an integer number (79246496805).

Almost surely, 2^158492993609 is an apocalyptic number.

It is an amenable number.

158492993609 is a deficient number, since it is larger than the sum of its proper divisors (1).

158492993609 is an equidigital number, since it uses as much as digits as its factorization.

158492993609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37791360, while the sum is 65.

The spelling of 158492993609 in words is "one hundred fifty-eight billion, four hundred ninety-two million, nine hundred ninety-three thousand, six hundred nine".