2245783778541 has 20 divisors (see below), whose sum is σ = 3531381902400. Its totient is φ = 1418389753896.

The previous prime is 2245783778531. The next prime is 2245783778549. The reversal of 2245783778541 is 1458773875422.

2245783778541 is a `hidden beast` number, since 2 + 2 + 4 + 5 + 7 + 83 + 7 + 7 + 8 + 541 = 666.

2245783778541 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-2245783778541 is a prime.

It is a hoax number, since the sum of its digits (63) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2245783778549) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 729622821 + ... + 729625898.

It is an arithmetic number, because the mean of its divisors is an integer number (176569095120).

Almost surely, 2^{2245783778541} is an apocalyptic number.

It is an amenable number.

2245783778541 is a deficient number, since it is larger than the sum of its proper divisors (1285598123859).

2245783778541 is a wasteful number, since it uses less digits than its factorization.

2245783778541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1459248750 (or 1459248741 counting only the distinct ones).

The product of its digits is 105369600, while the sum is 63.

The spelling of 2245783778541 in words is "two trillion, two hundred forty-five billion, seven hundred eighty-three million, seven hundred seventy-eight thousand, five hundred forty-one".