6461367826 has 4 divisors (see below), whose sum is σ = 9692051742. Its totient is φ = 3230683912.

The previous prime is 6461367821. The next prime is 6461367827. The reversal of 6461367826 is 6287631646.

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

It can be written as a sum of positive squares in only one way, i.e., 4680612225 + 1780755601 = 68415^2 + 42199^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 6461367826.

It is not an unprimeable number, because it can be changed into a prime (6461367821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1615341955 + ... + 1615341958.

Almost surely, 2^6461367826 is an apocalyptic number.

6461367826 is a deficient number, since it is larger than the sum of its proper divisors (3230683916).

6461367826 is a wasteful number, since it uses less digits than its factorization.

6461367826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3230683915.

The product of its digits is 1741824, while the sum is 49.

The square root of 6461367826 is about 80382.6338583154. The cubic root of 6461367826 is about 1862.5509210347.

The spelling of 6461367826 in words is "six billion, four hundred sixty-one million, three hundred sixty-seven thousand, eight hundred twenty-six".