1461636330768 has 120 divisors (see below), whose sum is σ = 4224801211488. Its totient is φ = 471433890816.

The previous prime is 1461636330761. The next prime is 1461636330809. The reversal of 1461636330768 is 8670336361641.

It is a happy number.

1461636330768 is a `hidden beast` number, since 1 + 461 + 63 + 63 + 3 + 0 + 7 + 68 = 666.

It is not an unprimeable number, because it can be changed into a prime (1461636330761) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 440505 + ... + 1765592.

Almost surely, 2^{1461636330768} is an apocalyptic number.

1461636330768 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1461636330768 is an abundant number, since it is smaller than the sum of its proper divisors (2763164880720).

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

1461636330768 is a wasteful number, since it uses less digits than its factorization.

1461636330768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2206261 (or 2206252 counting only the distinct ones).

The product of its (nonzero) digits is 7838208, while the sum is 54.

The spelling of 1461636330768 in words is "one trillion, four hundred sixty-one billion, six hundred thirty-six million, three hundred thirty thousand, seven hundred sixty-eight".