6261356677 has 6 divisors (see below), whose sum is σ = 6545426342. Its totient is φ = 5989123272.

The previous prime is 6261356669. The next prime is 6261356707. The reversal of 6261356677 is 7766531626.

It can be written as a sum of positive squares in only one way, i.e., 4895241156 + 1366115521 = 69966^2 + 36961^2 .

It is not a de Polignac number, because 6261356677 - 2³ = 6261356669 is a prime.

It is a super-2 number, since 2×6261356677² = 78409174873224964658, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6261356677.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6261357677) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5917578 + ... + 5918635.

Almost surely, 2^6261356677 is an apocalyptic number.

It is an amenable number.

6261356677 is a deficient number, since it is larger than the sum of its proper divisors (284069665).

6261356677 is a wasteful number, since it uses less digits than its factorization.

6261356677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11836259 (or 11836236 counting only the distinct ones).

The product of its digits is 1905120, while the sum is 49.

The square root of 6261356677 is about 79128.7348376050. The cubic root of 6261356677 is about 1843.1307637279.

The spelling of 6261356677 in words is "six billion, two hundred sixty-one million, three hundred fifty-six thousand, six hundred seventy-seven".