1205455484678 has 16 divisors (see below), whose sum is σ = 1817630933184. Its totient is φ = 599579413440.

The previous prime is 1205455484677. The next prime is 1205455484711. The reversal of 1205455484678 is 8764845545021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1205455484677) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2478563 + ... + 2924753.

It is an arithmetic number, because the mean of its divisors is an integer number (113601933324).

Almost surely, 2^{1205455484678} is an apocalyptic number.

1205455484678 is a deficient number, since it is larger than the sum of its proper divisors (612175448506).

1205455484678 is a wasteful number, since it uses less digits than its factorization.

1205455484678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453247.

The product of its (nonzero) digits is 43008000, while the sum is 59.

The spelling of 1205455484678 in words is "one trillion, two hundred five billion, four hundred fifty-five million, four hundred eighty-four thousand, six hundred seventy-eight".