2137517211779 has 2 divisors, whose sum is σ = 2137517211780. Its totient is φ = 2137517211778.

The previous prime is 2137517211629. The next prime is 2137517211793. The reversal of 2137517211779 is 9771127157312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2137517211779 - 2²⁰ = 2137516163203 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2137517211779.

It is not a weakly prime, because it can be changed into another prime (2137517210779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1068758605889 + 1068758605890.

It is an arithmetic number, because the mean of its divisors is an integer number (1068758605890).

Almost surely, 2^{2137517211779} is an apocalyptic number.

2137517211779 is a deficient number, since it is larger than the sum of its proper divisors (1).

2137517211779 is an equidigital number, since it uses as much as digits as its factorization.

2137517211779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1296540, while the sum is 53.

The spelling of 2137517211779 in words is "two trillion, one hundred thirty-seven billion, five hundred seventeen million, two hundred eleven thousand, seven hundred seventy-nine".