3675771261 has 6 divisors (see below), whose sum is σ = 5309447390. Its totient is φ = 2450514168.

The previous prime is 3675771259. The next prime is 3675771269. The reversal of 3675771261 is 1621775763.

3675771261 is a `hidden beast` number, since 3 + 6 + 7 + 577 + 12 + 61 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2399138361 + 1276632900 = 48981^2 + 35730^2 .

It is not a de Polignac number, because 3675771261 - 2¹ = 3675771259 is a prime.

It is a super-2 number, since 2×3675771261² = 27022588726387060242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3675771269) 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, 204209506 + ... + 204209523.

Almost surely, 2^3675771261 is an apocalyptic number.

It is an amenable number.

3675771261 is a deficient number, since it is larger than the sum of its proper divisors (1633676129).

3675771261 is a wasteful number, since it uses less digits than its factorization.

3675771261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408419035 (or 408419032 counting only the distinct ones).

The product of its digits is 370440, while the sum is 45.

The square root of 3675771261 is about 60628.1391847053. The cubic root of 3675771261 is about 1543.2969313108.

The spelling of 3675771261 in words is "three billion, six hundred seventy-five million, seven hundred seventy-one thousand, two hundred sixty-one".