210742387047 has 6 divisors (see below), whose sum is σ = 304405670192. Its totient is φ = 140494924692.

The previous prime is 210742387043. The next prime is 210742387057. The reversal of 210742387047 is 740783247012.

210742387047 is a `hidden beast` number, since 2 + 107 + 423 + 87 + 0 + 47 = 666.

It is not a de Polignac number, because 210742387047 - 2² = 210742387043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210742386993 and 210742387011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210742387043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11707910383 + ... + 11707910400.

Almost surely, 2^210742387047 is an apocalyptic number.

210742387047 is a deficient number, since it is larger than the sum of its proper divisors (93663283145).

210742387047 is a wasteful number, since it uses less digits than its factorization.

210742387047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23415820789 (or 23415820786 counting only the distinct ones).

The product of its (nonzero) digits is 526848, while the sum is 45.

The spelling of 210742387047 in words is "two hundred ten billion, seven hundred forty-two million, three hundred eighty-seven thousand, forty-seven".