94478787909 has 60 divisors (see below), whose sum is σ = 155242090080. Its totient is φ = 57219188400.

The previous prime is 94478787797. The next prime is 94478787911. The reversal of 94478787909 is 90978787449.

It is not a de Polignac number, because 94478787909 - 2¹⁵ = 94478755141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (94478787209) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 19393744 + ... + 19398614.

It is an arithmetic number, because the mean of its divisors is an integer number (2587368168).

Almost surely, 2^94478787909 is an apocalyptic number.

94478787909 is a gapful number since it is divisible by the number (99) formed by its first and last digit.

It is an amenable number.

94478787909 is a deficient number, since it is larger than the sum of its proper divisors (60763302171).

94478787909 is a wasteful number, since it uses less digits than its factorization.

94478787909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6884 (or 6864 counting only the distinct ones).

The product of its (nonzero) digits is 256048128, while the sum is 72.

The spelling of 94478787909 in words is "ninety-four billion, four hundred seventy-eight million, seven hundred eighty-seven thousand, nine hundred nine".