5977061861 has 4 divisors (see below), whose sum is σ = 5977260012. Its totient is φ = 5976863712.

The previous prime is 5977061851. The next prime is 5977061887. The reversal of 5977061861 is 1681607795.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3334485025 + 2642576836 = 57745^2 + 51406^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5977061861 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5977061801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43400 + ... + 117633.

It is an arithmetic number, because the mean of its divisors is an integer number (1494315003).

Almost surely, 2^5977061861 is an apocalyptic number.

It is an amenable number.

5977061861 is a deficient number, since it is larger than the sum of its proper divisors (198151).

5977061861 is a wasteful number, since it uses less digits than its factorization.

5977061861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198150.

The product of its (nonzero) digits is 635040, while the sum is 50.

The square root of 5977061861 is about 77311.4600883983. The cubic root of 5977061861 is about 1814.8020042702.

The spelling of 5977061861 in words is "five billion, nine hundred seventy-seven million, sixty-one thousand, eight hundred sixty-one".