2045620783503 has 96 divisors (see below), whose sum is σ = 3367308672000. Its totient is φ = 1185311635200.

The previous prime is 2045620783471. The next prime is 2045620783543. The reversal of 2045620783503 is 3053870265402.

2045620783503 is a `hidden beast` number, since 2 + 0 + 4 + 5 + 62 + 0 + 7 + 83 + 503 = 666.

It is a Cunningham number, because it is equal to 1430252²-1.

It is not a de Polignac number, because 2045620783503 - 2⁵ = 2045620783471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2045620783543) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 141587626 + ... + 141602072.

It is an arithmetic number, because the mean of its divisors is an integer number (35076132000).

Almost surely, 2^{2045620783503} is an apocalyptic number.

2045620783503 is a deficient number, since it is larger than the sum of its proper divisors (1321687888497).

2045620783503 is a wasteful number, since it uses less digits than its factorization.

2045620783503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14973 (or 14970 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 45.

The spelling of 2045620783503 in words is "two trillion, forty-five billion, six hundred twenty million, seven hundred eighty-three thousand, five hundred three".