145753667779 has 2 divisors, whose sum is σ = 145753667780. Its totient is φ = 145753667778.

The previous prime is 145753667753. The next prime is 145753667809. The reversal of 145753667779 is 977766357541.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145753667779 is a prime.

It is a super-2 number, since 2×145753667779² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (145753767779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72876833889 + 72876833890.

It is an arithmetic number, because the mean of its divisors is an integer number (72876833890).

Almost surely, 2^145753667779 is an apocalyptic number.

145753667779 is a deficient number, since it is larger than the sum of its proper divisors (1).

145753667779 is an equidigital number, since it uses as much as digits as its factorization.

145753667779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 233377200, while the sum is 67.

The spelling of 145753667779 in words is "one hundred forty-five billion, seven hundred fifty-three million, six hundred sixty-seven thousand, seven hundred seventy-nine".