61848989682678 has 48 divisors (see below), whose sum is σ = 146227064504976. Its totient is φ = 18737176619520.

The previous prime is 61848989682659. The next prime is 61848989682703. The reversal of 61848989682678 is 87628698984816.

61848989682678 is a `hidden beast` number, since 6 + 1 + 8 + 489 + 8 + 9 + 68 + 2 + 67 + 8 = 666.

61848989682678 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×61848989682678² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 40425975 + ... + 41928002.

It is an arithmetic number, because the mean of its divisors is an integer number (3046397177187).

Almost surely, 2^{61848989682678} is an apocalyptic number.

61848989682678 is an abundant number, since it is smaller than the sum of its proper divisors (84378074822298).

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

61848989682678 is a wasteful number, since it uses less digits than its factorization.

61848989682678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82357789 (or 82357786 counting only the distinct ones).

The product of its digits is 32105299968, while the sum is 90.

The spelling of 61848989682678 in words is "sixty-one trillion, eight hundred forty-eight billion, nine hundred eighty-nine million, six hundred eighty-two thousand, six hundred seventy-eight".