45426971821 has 16 divisors (see below), whose sum is σ = 59967768960. Its totient is φ = 33315425280.

The previous prime is 45426971801. The next prime is 45426971839. The reversal of 45426971821 is 12817962454.

It is a cyclic number.

It is not a de Polignac number, because 45426971821 - 2⁹ = 45426971309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45426971801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17350476 + ... + 17353093.

It is an arithmetic number, because the mean of its divisors is an integer number (3747985560).

Almost surely, 2^45426971821 is an apocalyptic number.

It is an amenable number.

45426971821 is a deficient number, since it is larger than the sum of its proper divisors (14540797139).

45426971821 is a wasteful number, since it uses less digits than its factorization.

45426971821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34703604.

The product of its digits is 967680, while the sum is 49.

The spelling of 45426971821 in words is "forty-five billion, four hundred twenty-six million, nine hundred seventy-one thousand, eight hundred twenty-one".