128336167949 has 8 divisors (see below), whose sum is σ = 140110719840. Its totient is φ = 116579554000.

The previous prime is 128336167937. The next prime is 128336167979. The reversal of 128336167949 is 949761633821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 128336167949 - 2³² = 124041200653 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 (128336167909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4469519 + ... + 4498140.

It is an arithmetic number, because the mean of its divisors is an integer number (17513839980).

Almost surely, 2^128336167949 is an apocalyptic number.

It is an amenable number.

128336167949 is a deficient number, since it is larger than the sum of its proper divisors (11774551891).

128336167949 is a wasteful number, since it uses less digits than its factorization.

128336167949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8968971.

The product of its digits is 11757312, while the sum is 59.

The spelling of 128336167949 in words is "one hundred twenty-eight billion, three hundred thirty-six million, one hundred sixty-seven thousand, nine hundred forty-nine".