30656549842 has 4 divisors (see below), whose sum is σ = 45984824766. Its totient is φ = 15328274920.

The previous prime is 30656549831. The next prime is 30656549887. The reversal of 30656549842 is 24894565603.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 28858874641 + 1797675201 = 169879^2 + 42399^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 30656549842.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7664137459 + ... + 7664137462.

Almost surely, 2^30656549842 is an apocalyptic number.

30656549842 is a deficient number, since it is larger than the sum of its proper divisors (15328274924).

30656549842 is a wasteful number, since it uses less digits than its factorization.

30656549842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15328274923.

The product of its (nonzero) digits is 6220800, while the sum is 52.

The spelling of 30656549842 in words is "thirty billion, six hundred fifty-six million, five hundred forty-nine thousand, eight hundred forty-two".