78465272388010 has 16 divisors (see below), whose sum is σ = 141239035642536. Its totient is φ = 31385765545408.

The previous prime is 78465272387987. The next prime is 78465272388017. The reversal of 78465272388010 is 1088327256487.

78465272388010 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 73636358432569 + 4828913955441 = 8581163^2 + 2197479^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 78465272388010.

It is not an unprimeable number, because it can be changed into a prime (78465272388017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41965549 + ... + 43795408.

Almost surely, 2^{78465272388010} is an apocalyptic number.

78465272388010 is a deficient number, since it is larger than the sum of its proper divisors (62773763254526).

78465272388010 is a wasteful number, since it uses less digits than its factorization.

78465272388010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85852457.

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

The spelling of 78465272388010 in words is "seventy-eight trillion, four hundred sixty-five billion, two hundred seventy-two million, three hundred eighty-eight thousand, ten".