7400878961209 has 8 divisors (see below), whose sum is σ = 7416951624000. Its totient is φ = 7384816283856.

The previous prime is 7400878961141. The next prime is 7400878961221. The reversal of 7400878961209 is 9021698780047.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7400878961209 - 2³⁷ = 7263440007737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7400878964209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1011459 + ... + 3978040.

It is an arithmetic number, because the mean of its divisors is an integer number (927118953000).

Almost surely, 2^{7400878961209} is an apocalyptic number.

It is an amenable number.

7400878961209 is a deficient number, since it is larger than the sum of its proper divisors (16072662791).

7400878961209 is a wasteful number, since it uses less digits than its factorization.

7400878961209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4992719.

The product of its (nonzero) digits is 12192768, while the sum is 61.

The spelling of 7400878961209 in words is "seven trillion, four hundred billion, eight hundred seventy-eight million, nine hundred sixty-one thousand, two hundred nine".