157905563939 has 16 divisors (see below), whose sum is σ = 166787921664. Its totient is φ = 149284761600.

The previous prime is 157905563929. The next prime is 157905563957. The reversal of 157905563939 is 939365509751.

157905563939 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 157905563939 - 2¹⁶ = 157905498403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157905563929) 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, 176579 + ... + 589059.

It is an arithmetic number, because the mean of its divisors is an integer number (10424245104).

Almost surely, 2^157905563939 is an apocalyptic number.

157905563939 is a deficient number, since it is larger than the sum of its proper divisors (8882357725).

157905563939 is a wasteful number, since it uses less digits than its factorization.

157905563939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412798.

The product of its (nonzero) digits is 34445250, while the sum is 62.

The spelling of 157905563939 in words is "one hundred fifty-seven billion, nine hundred five million, five hundred sixty-three thousand, nine hundred thirty-nine".