30285683973946 has 4 divisors (see below), whose sum is σ = 45428525960922. Its totient is φ = 15142841986972.

The previous prime is 30285683973917. The next prime is 30285683973947. The reversal of 30285683973946 is 64937938658203.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 15629458534921 + 14656225439025 = 3953411^2 + 3828345^2 .

It is a super-3 number, since 3×30285683973946³ (a number of 41 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (30285683973947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7571420993485 + ... + 7571420993488.

Almost surely, 2^{30285683973946} is an apocalyptic number.

30285683973946 is a deficient number, since it is larger than the sum of its proper divisors (15142841986976).

30285683973946 is a wasteful number, since it uses less digits than its factorization.

30285683973946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15142841986975.

The product of its (nonzero) digits is 1410877440, while the sum is 73.

The spelling of 30285683973946 in words is "thirty trillion, two hundred eighty-five billion, six hundred eighty-three million, nine hundred seventy-three thousand, nine hundred forty-six".