2820355940497 has 16 divisors (see below), whose sum is σ = 2913311232000. Its totient is φ = 2727524977920.

The previous prime is 2820355940477. The next prime is 2820355940513. The reversal of 2820355940497 is 7940495530282.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2820355940497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2820355940477) 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, 482191629 + ... + 482197477.

It is an arithmetic number, because the mean of its divisors is an integer number (182081952000).

Almost surely, 2^{2820355940497} is an apocalyptic number.

It is an amenable number.

2820355940497 is a deficient number, since it is larger than the sum of its proper divisors (92955291503).

2820355940497 is a wasteful number, since it uses less digits than its factorization.

2820355940497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13776.

The product of its (nonzero) digits is 21772800, while the sum is 58.

The spelling of 2820355940497 in words is "two trillion, eight hundred twenty billion, three hundred fifty-five million, nine hundred forty thousand, four hundred ninety-seven".