30120040462644 has 48 divisors (see below), whose sum is σ = 85187993231040. Its totient is φ = 9127284988320.

The previous prime is 30120040462531. The next prime is 30120040462669. The reversal of 30120040462644 is 44626404002103.

30120040462644 is a `hidden beast` number, since 3 + 0 + 1 + 2 + 0 + 0 + 4 + 0 + 4 + 6 + 2 + 644 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 30120040462599 and 30120040462608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12676783519 + ... + 12676785894.

It is an arithmetic number, because the mean of its divisors is an integer number (1774749858980).

Almost surely, 2^{30120040462644} is an apocalyptic number.

It is an amenable number.

30120040462644 is an abundant number, since it is smaller than the sum of its proper divisors (55067952768396).

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

30120040462644 is a wasteful number, since it uses less digits than its factorization.

30120040462644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25353569437 (or 25353569429 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 36.

Adding to 30120040462644 its reverse (44626404002103), we get a palindrome (74746444464747).

The spelling of 30120040462644 in words is "thirty trillion, one hundred twenty billion, forty million, four hundred sixty-two thousand, six hundred forty-four".