213904547738 has 32 divisors (see below), whose sum is σ = 375286923264. Its totient is φ = 89525770992.

The previous prime is 213904547713. The next prime is 213904547809. The reversal of 213904547738 is 837745409312.

It is a self number, because there is not a number n which added to its sum of digits gives 213904547738.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3805031 + ... + 3860837.

It is an arithmetic number, because the mean of its divisors is an integer number (11727716352).

Almost surely, 2^213904547738 is an apocalyptic number.

213904547738 is a deficient number, since it is larger than the sum of its proper divisors (161382375526).

213904547738 is a wasteful number, since it uses less digits than its factorization.

213904547738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62226.

The product of its (nonzero) digits is 5080320, while the sum is 53.

The spelling of 213904547738 in words is "two hundred thirteen billion, nine hundred four million, five hundred forty-seven thousand, seven hundred thirty-eight".