30704038561 has 4 divisors (see below), whose sum is σ = 35090329792. Its totient is φ = 26317747332.

The previous prime is 30704038553. The next prime is 30704038583. The reversal of 30704038561 is 16583040703.

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.

It is a cyclic number.

It is not a de Polignac number, because 30704038561 - 2³ = 30704038553 is a prime.

It is a super-5 number, since 5×30704038561⁵ (a number of 54 digits) contains 55555 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30704038561.

It is not an unprimeable number, because it can be changed into a prime (30704038511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2193145605 + ... + 2193145618.

It is an arithmetic number, because the mean of its divisors is an integer number (8772582448).

Almost surely, 2^30704038561 is an apocalyptic number.

It is an amenable number.

30704038561 is a deficient number, since it is larger than the sum of its proper divisors (4386291231).

30704038561 is an equidigital number, since it uses as much as digits as its factorization.

30704038561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4386291230.

The product of its (nonzero) digits is 60480, while the sum is 37.

The spelling of 30704038561 in words is "thirty billion, seven hundred four million, thirty-eight thousand, five hundred sixty-one".