42802496749 has 4 divisors (see below), whose sum is σ = 42931809760. Its totient is φ = 42673183740.

The previous prime is 42802496747. The next prime is 42802496801. The reversal of 42802496749 is 94769420824.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42802496749 - 2¹ = 42802496747 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42802496749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42802496747) 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, 64656009 + ... + 64656670.

It is an arithmetic number, because the mean of its divisors is an integer number (10732952440).

Almost surely, 2^42802496749 is an apocalyptic number.

It is an amenable number.

42802496749 is a deficient number, since it is larger than the sum of its proper divisors (129313011).

42802496749 is a wasteful number, since it uses less digits than its factorization.

42802496749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129313010.

The product of its (nonzero) digits is 6967296, while the sum is 55.

The spelling of 42802496749 in words is "forty-two billion, eight hundred two million, four hundred ninety-six thousand, seven hundred forty-nine".