53432942639 has 4 divisors (see below), whose sum is σ = 54675569256. Its totient is φ = 52190316024.

The previous prime is 53432942621. The next prime is 53432942657. The reversal of 53432942639 is 93624923435.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (53432942621) and next prime (53432942657).

It is a cyclic number.

It is not a de Polignac number, because 53432942639 - 2⁸ = 53432942383 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 (53432942699) 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, 621313244 + ... + 621313329.

It is an arithmetic number, because the mean of its divisors is an integer number (13668892314).

Almost surely, 2^53432942639 is an apocalyptic number.

53432942639 is a deficient number, since it is larger than the sum of its proper divisors (1242626617).

53432942639 is a wasteful number, since it uses less digits than its factorization.

53432942639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1242626616.

The product of its digits is 4199040, while the sum is 50.

The spelling of 53432942639 in words is "fifty-three billion, four hundred thirty-two million, nine hundred forty-two thousand, six hundred thirty-nine".