154091695849 has 16 divisors (see below), whose sum is σ = 191423772288. Its totient is φ = 120779269632.

The previous prime is 154091695829. The next prime is 154091695853. The reversal of 154091695849 is 948596190451.

154091695849 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 154091695849 - 2²³ = 154083307241 is a prime.

It is a super-3 number, since 3×154091695849³ (a number of 35 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (154091695829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7902952 + ... + 7922425.

It is an arithmetic number, because the mean of its divisors is an integer number (11963985768).

Almost surely, 2^154091695849 is an apocalyptic number.

It is an amenable number.

154091695849 is a deficient number, since it is larger than the sum of its proper divisors (37332076439).

154091695849 is a wasteful number, since it uses less digits than its factorization.

154091695849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15825504.

The product of its (nonzero) digits is 13996800, while the sum is 61.

The spelling of 154091695849 in words is "one hundred fifty-four billion, ninety-one million, six hundred ninety-five thousand, eight hundred forty-nine".