78211741459 has 2 divisors, whose sum is σ = 78211741460. Its totient is φ = 78211741458.

The previous prime is 78211741411. The next prime is 78211741519. The reversal of 78211741459 is 95414711287.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 78211741459 - 2⁷ = 78211741331 is a prime.

It is a super-2 number, since 2×78211741459² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (78211742459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39105870729 + 39105870730.

It is an arithmetic number, because the mean of its divisors is an integer number (39105870730).

Almost surely, 2^78211741459 is an apocalyptic number.

78211741459 is a deficient number, since it is larger than the sum of its proper divisors (1).

78211741459 is an equidigital number, since it uses as much as digits as its factorization.

78211741459 is an evil number, because the sum of its binary digits is even.

The product of its digits is 564480, while the sum is 49.

The spelling of 78211741459 in words is "seventy-eight billion, two hundred eleven million, seven hundred forty-one thousand, four hundred fifty-nine".