30738253667870 has 128 divisors (see below), whose sum is σ = 64291307351040. Its totient is φ = 10364297149440.

The previous prime is 30738253667809. The next prime is 30738253667909. The reversal of 30738253667870 is 7876635283703.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 30738253667797 and 30738253667806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 480907034 + ... + 480970946.

It is an arithmetic number, because the mean of its divisors is an integer number (502275838680).

Almost surely, 2^{30738253667870} is an apocalyptic number.

30738253667870 is an abundant number, since it is smaller than the sum of its proper divisors (33553053683170).

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

30738253667870 is a wasteful number, since it uses less digits than its factorization.

30738253667870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64530.

The product of its (nonzero) digits is 213373440, while the sum is 65.

The spelling of 30738253667870 in words is "thirty trillion, seven hundred thirty-eight billion, two hundred fifty-three million, six hundred sixty-seven thousand, eight hundred seventy".