145364440777 has 2 divisors, whose sum is σ = 145364440778. Its totient is φ = 145364440776.

The previous prime is 145364440763. The next prime is 145364440799. The reversal of 145364440777 is 777044463541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111509912761 + 33854528016 = 333931^2 + 183996^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145364440777 is a prime.

It is a super-2 number, since 2×145364440777² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (145364441777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72682220388 + 72682220389.

It is an arithmetic number, because the mean of its divisors is an integer number (72682220389).

Almost surely, 2^145364440777 is an apocalyptic number.

It is an amenable number.

145364440777 is a deficient number, since it is larger than the sum of its proper divisors (1).

145364440777 is an equidigital number, since it uses as much as digits as its factorization.

145364440777 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7902720, while the sum is 52.

The spelling of 145364440777 in words is "one hundred forty-five billion, three hundred sixty-four million, four hundred forty thousand, seven hundred seventy-seven".