4294236640537 has 2 divisors, whose sum is σ = 4294236640538. Its totient is φ = 4294236640536.

The previous prime is 4294236640511. The next prime is 4294236640541. The reversal of 4294236640537 is 7350466324924.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2421310275136 + 1872926365401 = 1556056^2 + 1368549^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4294236640537 is a prime.

It is not a weakly prime, because it can be changed into another prime (4294236640937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2147118320268 + 2147118320269.

It is an arithmetic number, because the mean of its divisors is an integer number (2147118320269).

Almost surely, 2^{4294236640537} is an apocalyptic number.

It is an amenable number.

4294236640537 is a deficient number, since it is larger than the sum of its proper divisors (1).

4294236640537 is an equidigital number, since it uses as much as digits as its factorization.

4294236640537 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26127360, while the sum is 55.

The spelling of 4294236640537 in words is "four trillion, two hundred ninety-four billion, two hundred thirty-six million, six hundred forty thousand, five hundred thirty-seven".