45123955775 has 24 divisors (see below), whose sum is σ = 58080970080. Its totient is φ = 34735245440.

The previous prime is 45123955769. The next prime is 45123955819. The reversal of 45123955775 is 57755932154.

45123955775 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 212424²-1.

It is not a de Polignac number, because 45123955775 - 2¹² = 45123951679 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 106214 + ... + 318636.

It is an arithmetic number, because the mean of its divisors is an integer number (2420040420).

Almost surely, 2^45123955775 is an apocalyptic number.

45123955775 is a deficient number, since it is larger than the sum of its proper divisors (12957014305).

45123955775 is a wasteful number, since it uses less digits than its factorization.

45123955775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212755 (or 212750 counting only the distinct ones).

The product of its digits is 6615000, while the sum is 53.

The spelling of 45123955775 in words is "forty-five billion, one hundred twenty-three million, nine hundred fifty-five thousand, seven hundred seventy-five".