78462655832144 has 10 divisors (see below), whose sum is σ = 152021395674810. Its totient is φ = 39231327916064.

The previous prime is 78462655832089. The next prime is 78462655832153. The reversal of 78462655832144 is 44123855626487.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 56857933776400 + 21604722055744 = 7540420^2 + 4648088^2 .

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2451957994739 + ... + 2451957994770.

It is an arithmetic number, because the mean of its divisors is an integer number (15202139567481).

Almost surely, 2^{78462655832144} is an apocalyptic number.

It is an amenable number.

78462655832144 is a deficient number, since it is larger than the sum of its proper divisors (73558739842666).

78462655832144 is a wasteful number, since it uses less digits than its factorization.

78462655832144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4903915989517 (or 4903915989511 counting only the distinct ones).

The product of its digits is 309657600, while the sum is 65.

The spelling of 78462655832144 in words is "seventy-eight trillion, four hundred sixty-two billion, six hundred fifty-five million, eight hundred thirty-two thousand, one hundred forty-four".