6247402879 has 24 divisors (see below), whose sum is σ = 6719616000. Its totient is φ = 5806819200.

The previous prime is 6247402831. The next prime is 6247402951. The reversal of 6247402879 is 9782047426.

It is a happy number.

It is not a de Polignac number, because 6247402879 - 2⁹ = 6247402367 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 (6247402279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10429422 + ... + 10430020.

It is an arithmetic number, because the mean of its divisors is an integer number (279984000).

Almost surely, 2^6247402879 is an apocalyptic number.

6247402879 is a deficient number, since it is larger than the sum of its proper divisors (472213121).

6247402879 is a wasteful number, since it uses less digits than its factorization.

6247402879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1023 (or 1006 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 49.

The square root of 6247402879 is about 79040.5141620422. The cubic root of 6247402879 is about 1841.7605706228.

The spelling of 6247402879 in words is "six billion, two hundred forty-seven million, four hundred two thousand, eight hundred seventy-nine".