78298390810 has 16 divisors (see below), whose sum is σ = 141340941000. Its totient is φ = 31229614656.

The previous prime is 78298390801. The next prime is 78298390853. The reversal of 78298390810 is 1809389287.

It can be written as a sum of positive squares in 4 ways, for example, as 54474159609 + 23824231201 = 233397^2 + 154351^2 .

It is a super-2 number, since 2×78298390810² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 11214045 + ... + 11221024.

Almost surely, 2^78298390810 is an apocalyptic number.

78298390810 is a deficient number, since it is larger than the sum of its proper divisors (63042550190).

78298390810 is a wasteful number, since it uses less digits than its factorization.

78298390810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22435425.

The product of its (nonzero) digits is 1741824, while the sum is 55.

The spelling of 78298390810 in words is "seventy-eight billion, two hundred ninety-eight million, three hundred ninety thousand, eight hundred ten".