497423281642 has 128 divisors (see below), whose sum is σ = 942866749440. Its totient is φ = 192047708160.

The previous prime is 497423281639. The next prime is 497423281651. The reversal of 497423281642 is 246182324794.

It is a super-2 number, since 2×497423281642² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 497423281642.

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, 320297538 + ... + 320299090.

It is an arithmetic number, because the mean of its divisors is an integer number (7366146480).

Almost surely, 2^497423281642 is an apocalyptic number.

497423281642 is a deficient number, since it is larger than the sum of its proper divisors (445443467798).

497423281642 is a wasteful number, since it uses less digits than its factorization.

497423281642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2348.

The product of its digits is 4644864, while the sum is 52.

The spelling of 497423281642 in words is "four hundred ninety-seven billion, four hundred twenty-three million, two hundred eighty-one thousand, six hundred forty-two".