2788945278029 has 2 divisors, whose sum is σ = 2788945278030. Its totient is φ = 2788945278028.

The previous prime is 2788945277939. The next prime is 2788945278079. The reversal of 2788945278029 is 9208725498872.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2694620740900 + 94324537129 = 1641530^2 + 307123^2 .

It is a cyclic number.

It is not a de Polignac number, because 2788945278029 - 2⁴⁰ = 1689433650253 is a prime.

It is a super-2 number, since 2×2788945278029² (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 (2788945278079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1394472639014 + 1394472639015.

It is an arithmetic number, because the mean of its divisors is an integer number (1394472639015).

Almost surely, 2^{2788945278029} is an apocalyptic number.

It is an amenable number.

2788945278029 is a deficient number, since it is larger than the sum of its proper divisors (1).

2788945278029 is an equidigital number, since it uses as much as digits as its factorization.

2788945278029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 325140480, while the sum is 71.

The spelling of 2788945278029 in words is "two trillion, seven hundred eighty-eight billion, nine hundred forty-five million, two hundred seventy-eight thousand, twenty-nine".