2158214850037 has 2 divisors, whose sum is σ = 2158214850038. Its totient is φ = 2158214850036.

The previous prime is 2158214850017. The next prime is 2158214850079. The reversal of 2158214850037 is 7300584128512.

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., 1446569074756 + 711645775281 = 1202734^2 + 843591^2 .

It is a cyclic number.

It is not a de Polignac number, because 2158214850037 - 2³¹ = 2156067366389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2158214850017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1079107425018 + 1079107425019.

It is an arithmetic number, because the mean of its divisors is an integer number (1079107425019).

Almost surely, 2^{2158214850037} is an apocalyptic number.

It is an amenable number.

2158214850037 is a deficient number, since it is larger than the sum of its proper divisors (1).

2158214850037 is an equidigital number, since it uses as much as digits as its factorization.

2158214850037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 537600, while the sum is 46.

Adding to 2158214850037 its reverse (7300584128512), we get a palindrome (9458798978549).

The spelling of 2158214850037 in words is "two trillion, one hundred fifty-eight billion, two hundred fourteen million, eight hundred fifty thousand, thirty-seven".