43545157042337 has 2 divisors, whose sum is σ = 43545157042338. Its totient is φ = 43545157042336.

The previous prime is 43545157042297. The next prime is 43545157042381. The reversal of 43545157042337 is 73324075154534.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24408303106576 + 19136853935761 = 4940476^2 + 4374569^2 .

It is a cyclic number.

It is not a de Polignac number, because 43545157042337 - 2⁶ = 43545157042273 is a prime.

It is a super-2 number, since 2×43545157042337² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (43545117042337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21772578521168 + 21772578521169.

It is an arithmetic number, because the mean of its divisors is an integer number (21772578521169).

Almost surely, 2^{43545157042337} is an apocalyptic number.

It is an amenable number.

43545157042337 is a deficient number, since it is larger than the sum of its proper divisors (1).

43545157042337 is an equidigital number, since it uses as much as digits as its factorization.

43545157042337 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21168000, while the sum is 53.

The spelling of 43545157042337 in words is "forty-three trillion, five hundred forty-five billion, one hundred fifty-seven million, forty-two thousand, three hundred thirty-seven".