219790954037 has 2 divisors, whose sum is σ = 219790954038. Its totient is φ = 219790954036.

The previous prime is 219790954007. The next prime is 219790954127. The reversal of 219790954037 is 730459097912.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 143000447716 + 76790506321 = 378154^2 + 277111^2 .

It is a cyclic number.

It is not a de Polignac number, because 219790954037 - 2²⁸ = 219522518581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (219790954007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 109895477018 + 109895477019.

It is an arithmetic number, because the mean of its divisors is an integer number (109895477019).

Almost surely, 2^219790954037 is an apocalyptic number.

It is an amenable number.

219790954037 is a deficient number, since it is larger than the sum of its proper divisors (1).

219790954037 is an equidigital number, since it uses as much as digits as its factorization.

219790954037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4286520, while the sum is 56.

The spelling of 219790954037 in words is "two hundred nineteen billion, seven hundred ninety million, nine hundred fifty-four thousand, thirty-seven".