45403173937981 has 2 divisors, whose sum is σ = 45403173937982. Its totient is φ = 45403173937980.

The previous prime is 45403173937967. The next prime is 45403173938047. The reversal of 45403173937981 is 18973937130454.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25412134692025 + 19991039245956 = 5041045^2 + 4471134^2 .

It is a cyclic number.

It is not a de Polignac number, because 45403173937981 - 2⁵ = 45403173937949 is a prime.

It is a super-2 number, since 2×45403173937981² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45403143937981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22701586968990 + 22701586968991.

It is an arithmetic number, because the mean of its divisors is an integer number (22701586968991).

Almost surely, 2^{45403173937981} is an apocalyptic number.

It is an amenable number.

45403173937981 is a deficient number, since it is larger than the sum of its proper divisors (1).

45403173937981 is an equidigital number, since it uses as much as digits as its factorization.

45403173937981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 68584320, while the sum is 64.

The spelling of 45403173937981 in words is "forty-five trillion, four hundred three billion, one hundred seventy-three million, nine hundred thirty-seven thousand, nine hundred eighty-one".