498145902187 has 4 divisors (see below), whose sum is σ = 515323347120. Its totient is φ = 480968457256.

The previous prime is 498145902161. The next prime is 498145902197. The reversal of 498145902187 is 781209541894.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-498145902187 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (498145902197) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8588722423 + ... + 8588722480.

It is an arithmetic number, because the mean of its divisors is an integer number (128830836780).

Almost surely, 2^498145902187 is an apocalyptic number.

498145902187 is a deficient number, since it is larger than the sum of its proper divisors (17177444933).

498145902187 is a wasteful number, since it uses less digits than its factorization.

498145902187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17177444932.

The product of its (nonzero) digits is 5806080, while the sum is 58.

The spelling of 498145902187 in words is "four hundred ninety-eight billion, one hundred forty-five million, nine hundred two thousand, one hundred eighty-seven".