6279401349 has 54 divisors (see below), whose sum is σ = 10174055190. Its totient is φ = 3730237056.

The previous prime is 6279401339. The next prime is 6279401351. The reversal of 6279401349 is 9431049726.

It is a happy number.

6279401349 is a `hidden beast` number, since 627 + 9 + 4 + 0 + 13 + 4 + 9 = 666.

It can be written as a sum of positive squares in 9 ways, for example, as 993384324 + 5286017025 = 31518^2 + 72705^2 .

It is not a de Polignac number, because 6279401349 - 2¹⁶ = 6279335813 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6279401339) by changing a digit.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 1276707 + ... + 1281615.

Almost surely, 2^6279401349 is an apocalyptic number.

It is an amenable number.

6279401349 is a deficient number, since it is larger than the sum of its proper divisors (3894653841).

6279401349 is a wasteful number, since it uses less digits than its factorization.

6279401349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4999 (or 4954 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The square root of 6279401349 is about 79242.6737875496. The cubic root of 6279401349 is about 1844.8996451022.

The spelling of 6279401349 in words is "six billion, two hundred seventy-nine million, four hundred one thousand, three hundred forty-nine".