30420040415455 has 32 divisors (see below), whose sum is σ = 38659779906048. Its totient is φ = 22941395097600.

The previous prime is 30420040415431. The next prime is 30420040415489. The reversal of 30420040415455 is 55451404002403.

It is not a de Polignac number, because 30420040415455 - 2⁹ = 30420040414943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 484587 + ... + 7815043.

It is an arithmetic number, because the mean of its divisors is an integer number (1208118122064).

Almost surely, 2^{30420040415455} is an apocalyptic number.

30420040415455 is a deficient number, since it is larger than the sum of its proper divisors (8239739490593).

30420040415455 is a wasteful number, since it uses less digits than its factorization.

30420040415455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7331187.

The product of its (nonzero) digits is 192000, while the sum is 37.

Adding to 30420040415455 its reverse (55451404002403), we get a palindrome (85871444417858).

The spelling of 30420040415455 in words is "thirty trillion, four hundred twenty billion, forty million, four hundred fifteen thousand, four hundred fifty-five".