1207326990400 has 84 divisors (see below), whose sum is σ = 3051070449028. Its totient is φ = 469878589440.

The previous prime is 1207326990379. The next prime is 1207326990403. The reversal of 1207326990400 is 40996237021.

It can be written as a sum of positive squares in 6 ways, for example, as 42878813184 + 1164448177216 = 207072^2 + 1079096^2 .

It is not an unprimeable number, because it can be changed into a prime (1207326990403) 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, 10137819 + ... + 10256218.

Almost surely, 2^{1207326990400} is an apocalyptic number.

1207326990400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1207326990400 is an abundant number, since it is smaller than the sum of its proper divisors (1843743458628).

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

1207326990400 is a wasteful number, since it uses less digits than its factorization.

1207326990400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20394096 (or 20394081 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 43.

The spelling of 1207326990400 in words is "one trillion, two hundred seven billion, three hundred twenty-six million, nine hundred ninety thousand, four hundred".