497035398891 has 16 divisors (see below), whose sum is σ = 683385191424. Its totient is φ = 321158166144.

The previous prime is 497035398803. The next prime is 497035398901. The reversal of 497035398891 is 198893530794.

It is not a de Polignac number, because 497035398891 - 2³¹ = 494887915243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (497035398191) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17097486 + ... + 17126531.

It is an arithmetic number, because the mean of its divisors is an integer number (42711574464).

Almost surely, 2^497035398891 is an apocalyptic number.

497035398891 is a deficient number, since it is larger than the sum of its proper divisors (186349792533).

497035398891 is a wasteful number, since it uses less digits than its factorization.

497035398891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34224170.

The product of its (nonzero) digits is 58786560, while the sum is 66.

The spelling of 497035398891 in words is "four hundred ninety-seven billion, thirty-five million, three hundred ninety-eight thousand, eight hundred ninety-one".