6461476837 has 4 divisors (see below), whose sum is σ = 6462830860. Its totient is φ = 6460122816.

The previous prime is 6461476831. The next prime is 6461476849. The reversal of 6461476837 is 7386741646.

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 3103158436 + 3358318401 = 55706^2 + 57951^2 .

It is a cyclic number.

It is not a de Polignac number, because 6461476837 - 2⁷ = 6461476709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6461476831) 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, 669828 + ... + 679405.

It is an arithmetic number, because the mean of its divisors is an integer number (1615707715).

Almost surely, 2^6461476837 is an apocalyptic number.

It is an amenable number.

6461476837 is a deficient number, since it is larger than the sum of its proper divisors (1354023).

6461476837 is a wasteful number, since it uses less digits than its factorization.

6461476837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1354022.

The product of its digits is 4064256, while the sum is 52.

The square root of 6461476837 is about 80383.3119310221. The cubic root of 6461476837 is about 1862.5613954627.

The spelling of 6461476837 in words is "six billion, four hundred sixty-one million, four hundred seventy-six thousand, eight hundred thirty-seven".