30547921452997 has 8 divisors (see below), whose sum is σ = 32935273277816. Its totient is φ = 28165928444352.

The previous prime is 30547921452887. The next prime is 30547921453009. The reversal of 30547921452997 is 79925412974503.

It can be written as a sum of positive squares in 4 ways, for example, as 4252829693121 + 26295091759876 = 2062239^2 + 5127874^2 .

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 30547921452997 - 2⁷ = 30547921452869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30547921452397) 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, 1339692198 + ... + 1339714999.

It is an arithmetic number, because the mean of its divisors is an integer number (4116909159727).

Almost surely, 2^{30547921452997} is an apocalyptic number.

It is an amenable number.

30547921452997 is a deficient number, since it is larger than the sum of its proper divisors (2387351824819).

30547921452997 is a wasteful number, since it uses less digits than its factorization.

30547921452997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2679408087.

The product of its (nonzero) digits is 171460800, while the sum is 67.

The spelling of 30547921452997 in words is "thirty trillion, five hundred forty-seven billion, nine hundred twenty-one million, four hundred fifty-two thousand, nine hundred ninety-seven".