30720463637045 has 64 divisors (see below), whose sum is σ = 45843766026240. Its totient is φ = 19243012831488.

The previous prime is 30720463637033. The next prime is 30720463637051. The reversal of 30720463637045 is 54073636402703.

It is not a de Polignac number, because 30720463637045 - 2¹² = 30720463632949 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30720463636984 and 30720463637002.

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, 68151392 + ... + 68600678.

It is an arithmetic number, because the mean of its divisors is an integer number (716308844160).

Almost surely, 2^{30720463637045} is an apocalyptic number.

30720463637045 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

30720463637045 is a deficient number, since it is larger than the sum of its proper divisors (15123302389195).

30720463637045 is a wasteful number, since it uses less digits than its factorization.

30720463637045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450874.

The product of its (nonzero) digits is 7620480, while the sum is 50.

The spelling of 30720463637045 in words is "thirty trillion, seven hundred twenty billion, four hundred sixty-three million, six hundred thirty-seven thousand, forty-five".