78532881451060 has 24 divisors (see below), whose sum is σ = 165204872650440. Its totient is φ = 31358710370304.

The previous prime is 78532881451033. The next prime is 78532881451069. The reversal of 78532881451060 is 6015418823587.

It can be written as a sum of positive squares in 4 ways, for example, as 50431898777764 + 28100982673296 = 7101542^2 + 5301036^2 .

It is a super-2 number, since 2×78532881451060² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78532881450986 and 78532881451004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78532881451069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3402626305 + ... + 3402649384.

It is an arithmetic number, because the mean of its divisors is an integer number (6883536360435).

Almost surely, 2^{78532881451060} is an apocalyptic number.

It is an amenable number.

78532881451060 is an abundant number, since it is smaller than the sum of its proper divisors (86671991199380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78532881451060 is a wasteful number, since it uses less digits than its factorization.

78532881451060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6805276275 (or 6805276273 counting only the distinct ones).

The product of its (nonzero) digits is 12902400, while the sum is 58.

The spelling of 78532881451060 in words is "seventy-eight trillion, five hundred thirty-two billion, eight hundred eighty-one million, four hundred fifty-one thousand, sixty".