157749309306 has 48 divisors (see below), whose sum is σ = 358221973824. Its totient is φ = 50075279232.

The previous prime is 157749309269. The next prime is 157749309323. The reversal of 157749309306 is 603903947751.

It is a happy number.

157749309306 is a `hidden beast` number, since 1 + 577 + 4 + 9 + 30 + 9 + 30 + 6 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 745311 + ... + 933266.

It is an arithmetic number, because the mean of its divisors is an integer number (7462957788).

Almost surely, 2^157749309306 is an apocalyptic number.

157749309306 is an abundant number, since it is smaller than the sum of its proper divisors (200472664518).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

157749309306 is a wasteful number, since it uses less digits than its factorization.

157749309306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1678835 (or 1678832 counting only the distinct ones).

The product of its (nonzero) digits is 4286520, while the sum is 54.

The spelling of 157749309306 in words is "one hundred fifty-seven billion, seven hundred forty-nine million, three hundred nine thousand, three hundred six".