30478138369 has 8 divisors (see below), whose sum is σ = 34875868608. Its totient is φ = 26091335760.

The previous prime is 30478138367. The next prime is 30478138387. The reversal of 30478138369 is 96383187403.

It is a happy number.

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

It is not a de Polignac number, because 30478138369 - 2¹ = 30478138367 is a prime.

It is a super-2 number, since 2×30478138369² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30478138367) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2725927 + ... + 2737084.

It is an arithmetic number, because the mean of its divisors is an integer number (4359483576).

Almost surely, 2^30478138369 is an apocalyptic number.

It is an amenable number.

30478138369 is a deficient number, since it is larger than the sum of its proper divisors (4397730239).

30478138369 is an equidigital number, since it uses as much as digits as its factorization.

30478138369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5463815.

The product of its (nonzero) digits is 2612736, while the sum is 52.

The spelling of 30478138369 in words is "thirty billion, four hundred seventy-eight million, one hundred thirty-eight thousand, three hundred sixty-nine".