497787142842 has 160 divisors (see below), whose sum is σ = 1276317060480. Its totient is φ = 143536250880.

The previous prime is 497787142841. The next prime is 497787142903. The reversal of 497787142842 is 248241787794.

497787142842 is a `hidden beast` number, since 4 + 97 + 7 + 87 + 1 + 428 + 42 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 497787142842.

It is not an unprimeable number, because it can be changed into a prime (497787142841) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 7878834 + ... + 7941762.

It is an arithmetic number, because the mean of its divisors is an integer number (7976981628).

Almost surely, 2^497787142842 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 497787142842, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (638158530240).

497787142842 is an abundant number, since it is smaller than the sum of its proper divisors (778529917638).

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

497787142842 is a wasteful number, since it uses less digits than its factorization.

497787142842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63170 (or 63161 counting only the distinct ones).

The product of its digits is 50577408, while the sum is 63.

The spelling of 497787142842 in words is "four hundred ninety-seven billion, seven hundred eighty-seven million, one hundred forty-two thousand, eight hundred forty-two".