78058317331 has 2 divisors, whose sum is σ = 78058317332. Its totient is φ = 78058317330.

The previous prime is 78058317319. The next prime is 78058317343. The reversal of 78058317331 is 13371385087.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (78058317319) and next prime (78058317343).

It is a cyclic number.

It is not a de Polignac number, because 78058317331 - 2¹³ = 78058309139 is a prime.

It is a super-2 number, since 2×78058317331² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (78058317301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39029158665 + 39029158666.

It is an arithmetic number, because the mean of its divisors is an integer number (39029158666).

Almost surely, 2^78058317331 is an apocalyptic number.

78058317331 is a deficient number, since it is larger than the sum of its proper divisors (1).

78058317331 is an equidigital number, since it uses as much as digits as its factorization.

78058317331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 423360, while the sum is 46.

The spelling of 78058317331 in words is "seventy-eight billion, fifty-eight million, three hundred seventeen thousand, three hundred thirty-one".