30028679977 has 2 divisors, whose sum is σ = 30028679978. Its totient is φ = 30028679976.

The previous prime is 30028679959. The next prime is 30028680001. The reversal of 30028679977 is 77997682003.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25541153856 + 4487526121 = 159816^2 + 66989^2 .

It is a cyclic number.

It is not a de Polignac number, because 30028679977 - 2²⁷ = 29894462249 is a prime.

It is a super-2 number, since 2×30028679977² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (30028679377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15014339988 + 15014339989.

It is an arithmetic number, because the mean of its divisors is an integer number (15014339989).

Almost surely, 2^30028679977 is an apocalyptic number.

It is an amenable number.

30028679977 is a deficient number, since it is larger than the sum of its proper divisors (1).

30028679977 is an equidigital number, since it uses as much as digits as its factorization.

30028679977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8001504, while the sum is 58.

The spelling of 30028679977 in words is "thirty billion, twenty-eight million, six hundred seventy-nine thousand, nine hundred seventy-seven".