30897919122500 has 30 divisors (see below), whose sum is σ = 67567569542550. Its totient is φ = 12359167648000.

The previous prime is 30897919122481. The next prime is 30897919122503. The reversal of 30897919122500 is 522191979803.

It can be written as a sum of positive squares in 5 ways, for example, as 21884582185216 + 9013336937284 = 4678096^2 + 3002222^2 .

It is a super-2 number, since 2×30897919122500² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30897919122503) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 6179581325 + ... + 6179586324.

It is an arithmetic number, because the mean of its divisors is an integer number (2252252318085).

Almost surely, 2^{30897919122500} is an apocalyptic number.

It is an amenable number.

30897919122500 is an abundant number, since it is smaller than the sum of its proper divisors (36669650420050).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30897919122500 is a wasteful number, since it uses less digits than its factorization.

30897919122500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12359167673 (or 12359167656 counting only the distinct ones).

The product of its (nonzero) digits is 2449440, while the sum is 56.

The spelling of 30897919122500 in words is "thirty trillion, eight hundred ninety-seven billion, nine hundred nineteen million, one hundred twenty-two thousand, five hundred".