236894049487 has 2 divisors, whose sum is σ = 236894049488. Its totient is φ = 236894049486.

The previous prime is 236894049481. The next prime is 236894049499. The reversal of 236894049487 is 784940498632.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 236894049487 - 2³¹ = 234746565839 is a prime.

It is a super-2 number, since 2×236894049487² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (236894049481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 118447024743 + 118447024744.

It is an arithmetic number, because the mean of its divisors is an integer number (118447024744).

Almost surely, 2^236894049487 is an apocalyptic number.

236894049487 is a deficient number, since it is larger than the sum of its proper divisors (1).

236894049487 is an equidigital number, since it uses as much as digits as its factorization.

236894049487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 83607552, while the sum is 64.

The spelling of 236894049487 in words is "two hundred thirty-six billion, eight hundred ninety-four million, forty-nine thousand, four hundred eighty-seven".