498078325865 has 16 divisors (see below), whose sum is σ = 626130777600. Its totient is φ = 379852654272.

The previous prime is 498078325847. The next prime is 498078325879. The reversal of 498078325865 is 568523870894.

It is a cyclic number.

It is not a de Polignac number, because 498078325865 - 2²⁶ = 498011217001 is a prime.

It is a super-2 number, since 2×498078325865² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21729197 + ... + 21752106.

It is an arithmetic number, because the mean of its divisors is an integer number (39133173600).

Almost surely, 2^498078325865 is an apocalyptic number.

It is an amenable number.

498078325865 is a deficient number, since it is larger than the sum of its proper divisors (128052451735).

498078325865 is a wasteful number, since it uses less digits than its factorization.

498078325865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43481416.

The product of its (nonzero) digits is 116121600, while the sum is 65.

The spelling of 498078325865 in words is "four hundred ninety-eight billion, seventy-eight million, three hundred twenty-five thousand, eight hundred sixty-five".