1306091898240 has 64 divisors (see below), whose sum is σ = 4163167931760. Its totient is φ = 348291172352.

The previous prime is 1306091898217. The next prime is 1306091898263. The reversal of 1306091898240 is 428981906031.

It is an interprime number because it is at equal distance from previous prime (1306091898217) and next prime (1306091898263).

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 340126179 + ... + 340130018.

Almost surely, 2^{1306091898240} is an apocalyptic number.

1306091898240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1306091898240 is an abundant number, since it is smaller than the sum of its proper divisors (2857076033520).

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

1306091898240 is an equidigital number, since it uses as much as digits as its factorization.

1306091898240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680256219 (or 680256207 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 51.

The spelling of 1306091898240 in words is "one trillion, three hundred six billion, ninety-one million, eight hundred ninety-eight thousand, two hundred forty".