642023849037 has 16 divisors (see below), whose sum is σ = 873654268608. Its totient is φ = 419231904000.

The previous prime is 642023849009. The next prime is 642023849053. The reversal of 642023849037 is 730948320246.

It is not a de Polignac number, because 642023849037 - 2³¹ = 639876365389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (642023829037) 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 15 ways as a sum of consecutive naturals, for example, 3310339 + ... + 3498912.

It is an arithmetic number, because the mean of its divisors is an integer number (54603391788).

Almost surely, 2^642023849037 is an apocalyptic number.

It is an amenable number.

642023849037 is a deficient number, since it is larger than the sum of its proper divisors (231630419571).

642023849037 is a wasteful number, since it uses less digits than its factorization.

642023849037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6809900.

The product of its (nonzero) digits is 1741824, while the sum is 48.

The spelling of 642023849037 in words is "six hundred forty-two billion, twenty-three million, eight hundred forty-nine thousand, thirty-seven".