78206263010404 has 6 divisors (see below), whose sum is σ = 136860960268214. Its totient is φ = 39103131505200.

The previous prime is 78206263010401. The next prime is 78206263010441. The reversal of 78206263010404 is 40401036260287.

It can be written as a sum of positive squares in only one way, i.e., 75002528160000 + 3203734850404 = 8660400^2 + 1789898^2 .

It is a super-2 number, since 2×78206263010404² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78206263010401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9775782876297 + ... + 9775782876304.

Almost surely, 2^{78206263010404} is an apocalyptic number.

It is an amenable number.

78206263010404 is a deficient number, since it is larger than the sum of its proper divisors (58654697257810).

78206263010404 is a wasteful number, since it uses less digits than its factorization.

78206263010404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19551565752605 (or 19551565752603 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 43.

The spelling of 78206263010404 in words is "seventy-eight trillion, two hundred six billion, two hundred sixty-three million, ten thousand, four hundred four".