31608550745 has 8 divisors (see below), whose sum is σ = 39579402816. Its totient is φ = 24187412656.

The previous prime is 31608550733. The next prime is 31608550747. The reversal of 31608550745 is 54705580613.

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 31608550745 - 2⁶ = 31608550681 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31608550696 and 31608550705.

It is not an unprimeable number, because it can be changed into a prime (31608550747) 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, 137428367 + ... + 137428596.

It is an arithmetic number, because the mean of its divisors is an integer number (4947425352).

Almost surely, 2^31608550745 is an apocalyptic number.

It is an amenable number.

31608550745 is a deficient number, since it is larger than the sum of its proper divisors (7970852071).

31608550745 is a wasteful number, since it uses less digits than its factorization.

31608550745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274856991.

The product of its (nonzero) digits is 504000, while the sum is 44.

The spelling of 31608550745 in words is "thirty-one billion, six hundred eight million, five hundred fifty thousand, seven hundred forty-five".