154693729838 has 16 divisors (see below), whose sum is σ = 237005236224. Its totient is φ = 75692367960.

The previous prime is 154693729811. The next prime is 154693729847. The reversal of 154693729838 is 838927396451.

154693729838 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 755303 + ... + 938013.

It is an arithmetic number, because the mean of its divisors is an integer number (14812827264).

Almost surely, 2^154693729838 is an apocalyptic number.

154693729838 is a deficient number, since it is larger than the sum of its proper divisors (82311506386).

154693729838 is a wasteful number, since it uses less digits than its factorization.

154693729838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191767.

The product of its digits is 78382080, while the sum is 65.

The spelling of 154693729838 in words is "one hundred fifty-four billion, six hundred ninety-three million, seven hundred twenty-nine thousand, eight hundred thirty-eight".