2045821399713 has 288 divisors, whose sum is σ = 3850318897152. Its totient is φ = 1036994918400.

The previous prime is 2045821399667. The next prime is 2045821399733. The reversal of 2045821399713 is 3179931285402.

2045821399713 is a `hidden beast` number, since 20 + 4 + 582 + 1 + 39 + 9 + 7 + 1 + 3 = 666.

It is not a de Polignac number, because 2045821399713 - 2²⁹ = 2045284528801 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2045821399713.

It is not an unprimeable number, because it can be changed into a prime (2045821399733) by changing a digit.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 3242188908 + ... + 3242189538.

Almost surely, 2^{2045821399713} is an apocalyptic number.

It is an amenable number.

2045821399713 is a deficient number, since it is larger than the sum of its proper divisors (1804497497439).

2045821399713 is a wasteful number, since it uses less digits than its factorization.

2045821399713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 925 (or 915 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 54.

The spelling of 2045821399713 in words is "two trillion, forty-five billion, eight hundred twenty-one million, three hundred ninety-nine thousand, seven hundred thirteen".