158404926949 has 4 divisors (see below), whose sum is σ = 159544530880. Its totient is φ = 157265323020.

The previous prime is 158404926937. The next prime is 158404926959. The reversal of 158404926949 is 949629404851.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 949629404851 = 12721 ⋅74650531.

It is a cyclic number.

It is not a de Polignac number, because 158404926949 - 2¹¹ = 158404924901 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 (158404926929) 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, 569801757 + ... + 569802034.

It is an arithmetic number, because the mean of its divisors is an integer number (39886132720).

Almost surely, 2^158404926949 is an apocalyptic number.

It is an amenable number.

158404926949 is a deficient number, since it is larger than the sum of its proper divisors (1139603931).

158404926949 is a wasteful number, since it uses less digits than its factorization.

158404926949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1139603930.

The product of its (nonzero) digits is 22394880, while the sum is 61.

The spelling of 158404926949 in words is "one hundred fifty-eight billion, four hundred four million, nine hundred twenty-six thousand, nine hundred forty-nine".