497479621758 has 128 divisors (see below), whose sum is σ = 1178935296000. Its totient is φ = 139866670944.

The previous prime is 497479621693. The next prime is 497479621783. The reversal of 497479621758 is 857126974794.

It is a hoax number, since the sum of its digits (69) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 497479621692 and 497479621701.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 49907691 + ... + 49917657.

It is an arithmetic number, because the mean of its divisors is an integer number (9210432000).

Almost surely, 2^497479621758 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 497479621758, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (589467648000).

497479621758 is an abundant number, since it is smaller than the sum of its proper divisors (681455674242).

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

497479621758 is a wasteful number, since it uses less digits than its factorization.

497479621758 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10379 (or 10365 counting only the distinct ones).

The product of its digits is 213373440, while the sum is 69.

The spelling of 497479621758 in words is "four hundred ninety-seven billion, four hundred seventy-nine million, six hundred twenty-one thousand, seven hundred fifty-eight".