6297777872561 has 8 divisors (see below), whose sum is σ = 7197492057600. Its totient is φ = 5398071595488.

The previous prime is 6297777872557. The next prime is 6297777872591. The reversal of 6297777872561 is 1652787777926.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 6297777872561 - 2² = 6297777872557 is a prime.

It is a super-2 number, since 2×6297777872561² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6297777872591) 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, 158996 + ... + 3552581.

It is an arithmetic number, because the mean of its divisors is an integer number (899686507200).

Almost surely, 2^{6297777872561} is an apocalyptic number.

It is an amenable number.

6297777872561 is a deficient number, since it is larger than the sum of its proper divisors (899714185039).

6297777872561 is a wasteful number, since it uses less digits than its factorization.

6297777872561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3953983.

The product of its digits is 871274880, while the sum is 74.

The spelling of 6297777872561 in words is "six trillion, two hundred ninety-seven billion, seven hundred seventy-seven million, eight hundred seventy-two thousand, five hundred sixty-one".