30798018747 has 8 divisors (see below), whose sum is σ = 45626694480. Its totient is φ = 20532012480.

The previous prime is 30798018743. The next prime is 30798018803. The reversal of 30798018747 is 74781089703.

It is not a de Polignac number, because 30798018747 - 2² = 30798018743 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30798018693 and 30798018702.

It is not an unprimeable number, because it can be changed into a prime (30798018743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 570333654 + ... + 570333707.

It is an arithmetic number, because the mean of its divisors is an integer number (5703336810).

Almost surely, 2^30798018747 is an apocalyptic number.

30798018747 is a deficient number, since it is larger than the sum of its proper divisors (14828675733).

30798018747 is a wasteful number, since it uses less digits than its factorization.

30798018747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1140667370 (or 1140667364 counting only the distinct ones).

The product of its (nonzero) digits is 2370816, while the sum is 54.

The spelling of 30798018747 in words is "thirty billion, seven hundred ninety-eight million, eighteen thousand, seven hundred forty-seven".