30620893478 has 16 divisors (see below), whose sum is σ = 52513761024. Its totient is φ = 13118039880.

The previous prime is 30620893477. The next prime is 30620893483. The reversal of 30620893478 is 87439802603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30620893477) 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, 396650 + ... + 467517.

It is an arithmetic number, because the mean of its divisors is an integer number (3282110064).

Almost surely, 2^30620893478 is an apocalyptic number.

30620893478 is a deficient number, since it is larger than the sum of its proper divisors (21892867546).

30620893478 is a wasteful number, since it uses less digits than its factorization.

30620893478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 866707.

The product of its (nonzero) digits is 1741824, while the sum is 50.

The spelling of 30620893478 in words is "thirty billion, six hundred twenty million, eight hundred ninety-three thousand, four hundred seventy-eight".