1204487634816 has 96 divisors (see below), whose sum is σ = 3466258941600. Its totient is φ = 401470359552.

The previous prime is 1204487634811. The next prime is 1204487634829. The reversal of 1204487634816 is 6184367844021.

1204487634816 is a `hidden beast` number, since 1 + 20 + 4 + 4 + 87 + 63 + 481 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1204487634811) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29444265 + ... + 29485143.

It is an arithmetic number, because the mean of its divisors is an integer number (36106863975).

Almost surely, 2^{1204487634816} is an apocalyptic number.

1204487634816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1204487634816 is an abundant number, since it is smaller than the sum of its proper divisors (2261771306784).

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

1204487634816 is a wasteful number, since it uses less digits than its factorization.

1204487634816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66476 (or 66461 counting only the distinct ones).

The product of its (nonzero) digits is 6193152, while the sum is 54.

The spelling of 1204487634816 in words is "one trillion, two hundred four billion, four hundred eighty-seven million, six hundred thirty-four thousand, eight hundred sixteen".