78048988455061 has 8 divisors (see below), whose sum is σ = 84078219660344. Its totient is φ = 72023394801600.

The previous prime is 78048988455013. The next prime is 78048988455071. The reversal of 78048988455061 is 16055488984087.

It can be written as a sum of positive squares in 4 ways, for example, as 2476827554436 + 75572160900625 = 1573794^2 + 8693225^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78048988455061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78048988455071) 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, 909343386 + ... + 909429211.

It is an arithmetic number, because the mean of its divisors is an integer number (10509777457543).

Almost surely, 2^{78048988455061} is an apocalyptic number.

78048988455061 is the 5100621-st hex number.

It is an amenable number.

78048988455061 is a deficient number, since it is larger than the sum of its proper divisors (6029231205283).

78048988455061 is a wasteful number, since it uses less digits than its factorization.

78048988455061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1818775911.

The product of its (nonzero) digits is 619315200, while the sum is 73.

The spelling of 78048988455061 in words is "seventy-eight trillion, forty-eight billion, nine hundred eighty-eight million, four hundred fifty-five thousand, sixty-one".