2119687503749 has 2 divisors, whose sum is σ = 2119687503750. Its totient is φ = 2119687503748.

The previous prime is 2119687503701. The next prime is 2119687503803. The reversal of 2119687503749 is 9473057869112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2096153796100 + 23533707649 = 1447810^2 + 153407^2 .

It is a cyclic number.

It is not a de Polignac number, because 2119687503749 - 2¹⁶ = 2119687438213 is a prime.

It is a super-2 number, since 2×2119687503749² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2119687503691 and 2119687503700.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2119687503449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1059843751874 + 1059843751875.

It is an arithmetic number, because the mean of its divisors is an integer number (1059843751875).

It is a 1-persistent number, because it is pandigital, but 2⋅2119687503749 = 4239375007498 is not.

Almost surely, 2^{2119687503749} is an apocalyptic number.

It is an amenable number.

2119687503749 is a deficient number, since it is larger than the sum of its proper divisors (1).

2119687503749 is an equidigital number, since it uses as much as digits as its factorization.

2119687503749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22861440, while the sum is 62.

The spelling of 2119687503749 in words is "two trillion, one hundred nineteen billion, six hundred eighty-seven million, five hundred three thousand, seven hundred forty-nine".