2699886352421 has 2 divisors, whose sum is σ = 2699886352422. Its totient is φ = 2699886352420.

The previous prime is 2699886352409. The next prime is 2699886352447. The reversal of 2699886352421 is 1242536889962.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2251005112225 + 448881240196 = 1500335^2 + 669986^2 .

It is a cyclic number.

It is not a de Polignac number, because 2699886352421 - 2²² = 2699882158117 is a prime.

It is a super-2 number, since 2×2699886352421² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2699886352451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1349943176210 + 1349943176211.

It is an arithmetic number, because the mean of its divisors is an integer number (1349943176211).

Almost surely, 2^{2699886352421} is an apocalyptic number.

It is an amenable number.

2699886352421 is a deficient number, since it is larger than the sum of its proper divisors (1).

2699886352421 is an equidigital number, since it uses as much as digits as its factorization.

2699886352421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 89579520, while the sum is 65.

The spelling of 2699886352421 in words is "two trillion, six hundred ninety-nine billion, eight hundred eighty-six million, three hundred fifty-two thousand, four hundred twenty-one".