1207805696640 has 1280 divisors, whose sum is σ = 4702598208000. Its totient is φ = 294298583040.

The previous prime is 1207805696633. The next prime is 1207805696641. The reversal of 1207805696640 is 466965087021.

1207805696640 is a `hidden beast` number, since 1 + 2 + 0 + 78 + 0 + 569 + 6 + 6 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (1207805696641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 6069375261 + ... + 6069375459.

It is an arithmetic number, because the mean of its divisors is an integer number (3673904850).

Almost surely, 2^{1207805696640} is an apocalyptic number.

1207805696640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1207805696640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2351299104000).

1207805696640 is an abundant number, since it is smaller than the sum of its proper divisors (3494792511360).

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

1207805696640 is a wasteful number, since it uses less digits than its factorization.

1207805696640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415 (or 394 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 54.

The spelling of 1207805696640 in words is "one trillion, two hundred seven billion, eight hundred five million, six hundred ninety-six thousand, six hundred forty".