185025450913 has 8 divisors (see below), whose sum is σ = 194931122400. Its totient is φ = 175136528448.

The previous prime is 185025450889. The next prime is 185025450917. The reversal of 185025450913 is 319054520581.

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 185025450913 - 2⁵ = 185025450881 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 185025450913.

It is not an unprimeable number, because it can be changed into a prime (185025450917) 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, 4164568 + ... + 4208761.

It is an arithmetic number, because the mean of its divisors is an integer number (24366390300).

Almost surely, 2^185025450913 is an apocalyptic number.

It is an amenable number.

185025450913 is a deficient number, since it is larger than the sum of its proper divisors (9905671487).

185025450913 is a wasteful number, since it uses less digits than its factorization.

185025450913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8374511.

The product of its (nonzero) digits is 216000, while the sum is 43.

The spelling of 185025450913 in words is "one hundred eighty-five billion, twenty-five million, four hundred fifty thousand, nine hundred thirteen".