78303000577 has 2 divisors, whose sum is σ = 78303000578. Its totient is φ = 78303000576.

The previous prime is 78303000571. The next prime is 78303000623. The reversal of 78303000577 is 77500030387.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62212331776 + 16090668801 = 249424^2 + 126849^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78303000577 is a prime.

It is a super-2 number, since 2×78303000577² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (78303000571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39151500288 + 39151500289.

It is an arithmetic number, because the mean of its divisors is an integer number (39151500289).

Almost surely, 2^78303000577 is an apocalyptic number.

It is an amenable number.

78303000577 is a deficient number, since it is larger than the sum of its proper divisors (1).

78303000577 is an equidigital number, since it uses as much as digits as its factorization.

78303000577 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 123480, while the sum is 40.

The spelling of 78303000577 in words is "seventy-eight billion, three hundred three million, five hundred seventy-seven", and thus it is an aban number.