78461539283 has 2 divisors, whose sum is σ = 78461539284. Its totient is φ = 78461539282.

The previous prime is 78461539267. The next prime is 78461539337. The reversal of 78461539283 is 38293516487.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 78461539283 - 2⁴ = 78461539267 is a prime.

It is not a weakly prime, because it can be changed into another prime (78461539213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39230769641 + 39230769642.

It is an arithmetic number, because the mean of its divisors is an integer number (39230769642).

Almost surely, 2^78461539283 is an apocalyptic number.

78461539283 is a deficient number, since it is larger than the sum of its proper divisors (1).

78461539283 is an equidigital number, since it uses as much as digits as its factorization.

78461539283 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8709120, while the sum is 56.

The spelling of 78461539283 in words is "seventy-eight billion, four hundred sixty-one million, five hundred thirty-nine thousand, two hundred eighty-three".