145863827969 has 2 divisors, whose sum is σ = 145863827970. Its totient is φ = 145863827968.

The previous prime is 145863827957. The next prime is 145863827983. The reversal of 145863827969 is 969728368541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 139194655744 + 6669172225 = 373088^2 + 81665^2 .

It is a cyclic number.

It is not a de Polignac number, because 145863827969 - 2⁸ = 145863827713 is a prime.

It is a super-2 number, since 2×145863827969² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 145863827899 and 145863827908.

It is not a weakly prime, because it can be changed into another prime (145863827939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72931913984 + 72931913985.

It is an arithmetic number, because the mean of its divisors is an integer number (72931913985).

Almost surely, 2^145863827969 is an apocalyptic number.

It is an amenable number.

145863827969 is a deficient number, since it is larger than the sum of its proper divisors (1).

145863827969 is an equidigital number, since it uses as much as digits as its factorization.

145863827969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 156764160, while the sum is 68.

The spelling of 145863827969 in words is "one hundred forty-five billion, eight hundred sixty-three million, eight hundred twenty-seven thousand, nine hundred sixty-nine".