45021878833 has 2 divisors, whose sum is σ = 45021878834. Its totient is φ = 45021878832.

The previous prime is 45021878831. The next prime is 45021878843. The reversal of 45021878833 is 33887812054.

45021878833 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44998288384 + 23590449 = 212128^2 + 4857^2 .

It is a cyclic number.

It is not a de Polignac number, because 45021878833 - 2¹ = 45021878831 is a prime.

Together with 45021878831, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (45021878831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22510939416 + 22510939417.

It is an arithmetic number, because the mean of its divisors is an integer number (22510939417).

Almost surely, 2^45021878833 is an apocalyptic number.

It is an amenable number.

45021878833 is a deficient number, since it is larger than the sum of its proper divisors (1).

45021878833 is an equidigital number, since it uses as much as digits as its factorization.

45021878833 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1290240, while the sum is 49.

The spelling of 45021878833 in words is "forty-five billion, twenty-one million, eight hundred seventy-eight thousand, eight hundred thirty-three".