402849739479 has 16 divisors (see below), whose sum is σ = 586833963264. Its totient is φ = 243788563200.

The previous prime is 402849739471. The next prime is 402849739529. The reversal of 402849739479 is 974937948204.

It is not a de Polignac number, because 402849739479 - 2³ = 402849739471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402849739471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9047307 + ... + 9091724.

It is an arithmetic number, because the mean of its divisors is an integer number (36677122704).

Almost surely, 2^402849739479 is an apocalyptic number.

402849739479 is a deficient number, since it is larger than the sum of its proper divisors (183984223785).

402849739479 is a wasteful number, since it uses less digits than its factorization.

402849739479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18139718.

The product of its (nonzero) digits is 109734912, while the sum is 66.

The spelling of 402849739479 in words is "four hundred two billion, eight hundred forty-nine million, seven hundred thirty-nine thousand, four hundred seventy-nine".