30649620478 has 8 divisors (see below), whose sum is σ = 46841872968. Its totient is φ = 15035662824.

The previous prime is 30649620451. The next prime is 30649620509. The reversal of 30649620478 is 87402694603.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144573576 + ... + 144573787.

It is an arithmetic number, because the mean of its divisors is an integer number (5855234121).

Almost surely, 2^30649620478 is an apocalyptic number.

30649620478 is a deficient number, since it is larger than the sum of its proper divisors (16192252490).

30649620478 is a wasteful number, since it uses less digits than its factorization.

30649620478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289147418.

The product of its (nonzero) digits is 1741824, while the sum is 49.

The spelling of 30649620478 in words is "thirty billion, six hundred forty-nine million, six hundred twenty thousand, four hundred seventy-eight".