15318198485 has 16 divisors (see below), whose sum is σ = 18978624000. Its totient is φ = 11856861120.

The previous prime is 15318198481. The next prime is 15318198491. The reversal of 15318198485 is 58489181351.

It is not a de Polignac number, because 15318198485 - 2² = 15318198481 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15318198481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1453766 + ... + 1464264.

It is an arithmetic number, because the mean of its divisors is an integer number (1186164000).

Almost surely, 2^15318198485 is an apocalyptic number.

It is an amenable number.

15318198485 is a deficient number, since it is larger than the sum of its proper divisors (3660425515).

15318198485 is a wasteful number, since it uses less digits than its factorization.

15318198485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19948.

The product of its digits is 1382400, while the sum is 53.

The spelling of 15318198485 in words is "fifteen billion, three hundred eighteen million, one hundred ninety-eight thousand, four hundred eighty-five".