2077421516417 has 8 divisors (see below), whose sum is σ = 2251473002856. Its totient is φ = 1905405720192.

The previous prime is 2077421516383. The next prime is 2077421516419. The reversal of 2077421516417 is 7146151247702.

It can be written as a sum of positive squares in 4 ways, for example, as 223510527361 + 1853910989056 = 472769^2 + 1361584^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2077421516417 - 2¹² = 2077421512321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2077421516419) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 508920428 + ... + 508924509.

It is an arithmetic number, because the mean of its divisors is an integer number (281434125357).

Almost surely, 2^{2077421516417} is an apocalyptic number.

It is an amenable number.

2077421516417 is a deficient number, since it is larger than the sum of its proper divisors (174051486439).

2077421516417 is a wasteful number, since it uses less digits than its factorization.

2077421516417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1017845107.

The product of its (nonzero) digits is 658560, while the sum is 47.

The spelling of 2077421516417 in words is "two trillion, seventy-seven billion, four hundred twenty-one million, five hundred sixteen thousand, four hundred seventeen".