30878393005 has 8 divisors (see below), whose sum is σ = 37561662072. Its totient is φ = 24364320768.

The previous prime is 30878392999. The next prime is 30878393027. The reversal of 30878393005 is 50039387803.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2295080649 + 28583312356 = 47907^2 + 169066^2 .

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 30878393005 - 2¹³ = 30878384813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42298804 + ... + 42299533.

It is an arithmetic number, because the mean of its divisors is an integer number (4695207759).

Almost surely, 2^30878393005 is an apocalyptic number.

It is an amenable number.

30878393005 is a deficient number, since it is larger than the sum of its proper divisors (6683269067).

30878393005 is an equidigital number, since it uses as much as digits as its factorization.

30878393005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84598415.

The product of its (nonzero) digits is 544320, while the sum is 46.

The spelling of 30878393005 in words is "thirty billion, eight hundred seventy-eight million, three hundred ninety-three thousand, five".