145276771847 has 2 divisors, whose sum is σ = 145276771848. Its totient is φ = 145276771846.

The previous prime is 145276771807. The next prime is 145276771867. The reversal of 145276771847 is 748177672541.

145276771847 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 145276771847 - 2¹² = 145276767751 is a prime.

It is a super-2 number, since 2×145276771847² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145276771807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72638385923 + 72638385924.

It is an arithmetic number, because the mean of its divisors is an integer number (72638385924).

Almost surely, 2^145276771847 is an apocalyptic number.

145276771847 is a deficient number, since it is larger than the sum of its proper divisors (1).

145276771847 is an equidigital number, since it uses as much as digits as its factorization.

145276771847 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18439680, while the sum is 59.

The spelling of 145276771847 in words is "one hundred forty-five billion, two hundred seventy-six million, seven hundred seventy-one thousand, eight hundred forty-seven".