30977683969 has 4 divisors (see below), whose sum is σ = 31502729520. Its totient is φ = 30452638420.

The previous prime is 30977683967. The next prime is 30977683991. The reversal of 30977683969 is 96938677903.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 96938677903 = 15511 ⋅6249673.

It is a cyclic number.

It is not a de Polignac number, because 30977683969 - 2¹ = 30977683967 is a prime.

It is a super-2 number, since 2×30977683969² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30977683967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 262522687 + ... + 262522804.

It is an arithmetic number, because the mean of its divisors is an integer number (7875682380).

Almost surely, 2^30977683969 is an apocalyptic number.

It is an amenable number.

30977683969 is a deficient number, since it is larger than the sum of its proper divisors (525045551).

30977683969 is an equidigital number, since it uses as much as digits as its factorization.

30977683969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525045550.

The product of its (nonzero) digits is 92588832, while the sum is 67.

The spelling of 30977683969 in words is "thirty billion, nine hundred seventy-seven million, six hundred eighty-three thousand, nine hundred sixty-nine".