45449548357 has 2 divisors, whose sum is σ = 45449548358. Its totient is φ = 45449548356.

The previous prime is 45449548351. The next prime is 45449548379. The reversal of 45449548357 is 75384594454.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44907543396 + 542004961 = 211914^2 + 23281^2 .

It is a cyclic number.

It is not a de Polignac number, because 45449548357 - 2¹⁹ = 45449024069 is a prime.

It is a super-2 number, since 2×45449548357² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45449548351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22724774178 + 22724774179.

It is an arithmetic number, because the mean of its divisors is an integer number (22724774179).

Almost surely, 2^45449548357 is an apocalyptic number.

It is an amenable number.

45449548357 is a deficient number, since it is larger than the sum of its proper divisors (1).

45449548357 is an equidigital number, since it uses as much as digits as its factorization.

45449548357 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48384000, while the sum is 58.

The spelling of 45449548357 in words is "forty-five billion, four hundred forty-nine million, five hundred forty-eight thousand, three hundred fifty-seven".