30605377421 has 8 divisors (see below), whose sum is σ = 31633144704. Its totient is φ = 29593301440.

The previous prime is 30605377391. The next prime is 30605377463. The reversal of 30605377421 is 12477350603.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30605377421 is a prime.

It is a super-2 number, since 2×30605377421² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30605377021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3918860 + ... + 3926661.

It is an arithmetic number, because the mean of its divisors is an integer number (3954143088).

Almost surely, 2^30605377421 is an apocalyptic number.

It is an amenable number.

30605377421 is a deficient number, since it is larger than the sum of its proper divisors (1027767283).

30605377421 is an equidigital number, since it uses as much as digits as its factorization.

30605377421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7845651.

The product of its (nonzero) digits is 105840, while the sum is 38.

The spelling of 30605377421 in words is "thirty billion, six hundred five million, three hundred seventy-seven thousand, four hundred twenty-one".