497808999636 has 24 divisors (see below), whose sum is σ = 1250904666144. Its totient is φ = 153171999840.

The previous prime is 497808999629. The next prime is 497808999641. The reversal of 497808999636 is 636999808794.

It is a Harshad number since it is a multiple of its sum of digits (78).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1595541510 + ... + 1595541821.

It is an arithmetic number, because the mean of its divisors is an integer number (52121027756).

Almost surely, 2^497808999636 is an apocalyptic number.

It is an amenable number.

497808999636 is an abundant number, since it is smaller than the sum of its proper divisors (753095666508).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

497808999636 is a wasteful number, since it uses less digits than its factorization.

497808999636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3191083351 (or 3191083349 counting only the distinct ones).

The product of its (nonzero) digits is 1269789696, while the sum is 78.

The spelling of 497808999636 in words is "four hundred ninety-seven billion, eight hundred eight million, nine hundred ninety-nine thousand, six hundred thirty-six".