6427554761 has 4 divisors (see below), whose sum is σ = 6432060432. Its totient is φ = 6423049092.

The previous prime is 6427554719. The next prime is 6427554773. The reversal of 6427554761 is 1674557246.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1674557246 = 2 ⋅837278623.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6427554761 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6427554961) 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, 2250695 + ... + 2253548.

It is an arithmetic number, because the mean of its divisors is an integer number (1608015108).

Almost surely, 2^6427554761 is an apocalyptic number.

It is an amenable number.

6427554761 is a deficient number, since it is larger than the sum of its proper divisors (4505671).

6427554761 is a wasteful number, since it uses less digits than its factorization.

6427554761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4505670.

The product of its digits is 1411200, while the sum is 47.

The square root of 6427554761 is about 80172.0322868268. The cubic root of 6427554761 is about 1859.2962575475.

The spelling of 6427554761 in words is "six billion, four hundred twenty-seven million, five hundred fifty-four thousand, seven hundred sixty-one".