29918683493 has 2 divisors, whose sum is σ = 29918683494. Its totient is φ = 29918683492.

The previous prime is 29918683463. The next prime is 29918683559. The reversal of 29918683493 is 39438681992.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29572649089 + 346034404 = 171967^2 + 18602^2 .

It is a cyclic number.

It is not a de Polignac number, because 29918683493 - 2¹² = 29918679397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29918683463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14959341746 + 14959341747.

It is an arithmetic number, because the mean of its divisors is an integer number (14959341747).

Almost surely, 2^29918683493 is an apocalyptic number.

It is an amenable number.

29918683493 is a deficient number, since it is larger than the sum of its proper divisors (1).

29918683493 is an equidigital number, since it uses as much as digits as its factorization.

29918683493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20155392, while the sum is 62.

The spelling of 29918683493 in words is "twenty-nine billion, nine hundred eighteen million, six hundred eighty-three thousand, four hundred ninety-three".