1856364830212 has 6 divisors (see below), whose sum is σ = 3248638452878. Its totient is φ = 928182415104.

The previous prime is 1856364830207. The next prime is 1856364830321. The reversal of 1856364830212 is 2120384636581.

It can be written as a sum of positive squares in only one way, i.e., 1105324206336 + 751040623876 = 1051344^2 + 866626^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 232045603773 + ... + 232045603780.

Almost surely, 2^{1856364830212} is an apocalyptic number.

It is an amenable number.

1856364830212 is a deficient number, since it is larger than the sum of its proper divisors (1392273622666).

1856364830212 is a wasteful number, since it uses less digits than its factorization.

1856364830212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464091207557 (or 464091207555 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 49.

The spelling of 1856364830212 in words is "one trillion, eight hundred fifty-six billion, three hundred sixty-four million, eight hundred thirty thousand, two hundred twelve".