30427987969 has 16 divisors (see below), whose sum is σ = 33515630080. Its totient is φ = 27514442880.

The previous prime is 30427987937. The next prime is 30427987973. The reversal of 30427987969 is 96978972403.

It is a cyclic number.

It is not a de Polignac number, because 30427987969 - 2⁵ = 30427987937 is a prime.

It is a super-2 number, since 2×30427987969² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30427987969.

It is not an unprimeable number, because it can be changed into a prime (30427987069) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 310842 + ... + 396835.

It is an arithmetic number, because the mean of its divisors is an integer number (2094726880).

Almost surely, 2^30427987969 is an apocalyptic number.

It is an amenable number.

30427987969 is a deficient number, since it is larger than the sum of its proper divisors (3087642111).

30427987969 is a wasteful number, since it uses less digits than its factorization.

30427987969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 707800.

The product of its (nonzero) digits is 41150592, while the sum is 64.

The spelling of 30427987969 in words is "thirty billion, four hundred twenty-seven million, nine hundred eighty-seven thousand, nine hundred sixty-nine".