2797421863869 has 24 divisors (see below), whose sum is σ = 4053103591680. Its totient is φ = 1859239296288.

The previous prime is 2797421863861. The next prime is 2797421863889. The reversal of 2797421863869 is 9683681247972.

2797421863869 is a `hidden beast` number, since 2 + 7 + 97 + 421 + 86 + 38 + 6 + 9 = 666.

It is not a de Polignac number, because 2797421863869 - 2³ = 2797421863861 is a prime.

It is a super-2 number, since 2×2797421863869² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2797421863797 and 2797421863806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2797421863861) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4768204 + ... + 5322650.

It is an arithmetic number, because the mean of its divisors is an integer number (168879316320).

Almost surely, 2^{2797421863869} is an apocalyptic number.

It is an amenable number.

2797421863869 is a deficient number, since it is larger than the sum of its proper divisors (1255681727811).

2797421863869 is a wasteful number, since it uses less digits than its factorization.

2797421863869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556169 (or 556166 counting only the distinct ones).

The product of its digits is 438939648, while the sum is 72.

The spelling of 2797421863869 in words is "two trillion, seven hundred ninety-seven billion, four hundred twenty-one million, eight hundred sixty-three thousand, eight hundred sixty-nine".