78862247650141 has 2 divisors, whose sum is σ = 78862247650142. Its totient is φ = 78862247650140.

The previous prime is 78862247650117. The next prime is 78862247650273. The reversal of 78862247650141 is 14105674226887.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74447819739225 + 4414427910916 = 8628315^2 + 2101054^2 .

It is a cyclic number.

It is not a de Polignac number, because 78862247650141 - 2³⁷ = 78724808696669 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 78862247650141.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78862247650541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39431123825070 + 39431123825071.

It is an arithmetic number, because the mean of its divisors is an integer number (39431123825071).

Almost surely, 2^{78862247650141} is an apocalyptic number.

It is an amenable number.

78862247650141 is a deficient number, since it is larger than the sum of its proper divisors (1).

78862247650141 is an equidigital number, since it uses as much as digits as its factorization.

78862247650141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36126720, while the sum is 61.

The spelling of 78862247650141 in words is "seventy-eight trillion, eight hundred sixty-two billion, two hundred forty-seven million, six hundred fifty thousand, one hundred forty-one".