20535214039 has 16 divisors (see below), whose sum is σ = 23241919680. Its totient is φ = 18036029440.

The previous prime is 20535214027. The next prime is 20535214087. The reversal of 20535214039 is 93041253502.

It is a cyclic number.

It is not a de Polignac number, because 20535214039 - 2²⁷ = 20400996311 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20535213995 and 20535214013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20535214939) 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, 624454 + ... + 656515.

It is an arithmetic number, because the mean of its divisors is an integer number (1452619980).

Almost surely, 2^20535214039 is an apocalyptic number.

20535214039 is a deficient number, since it is larger than the sum of its proper divisors (2706705641).

20535214039 is a wasteful number, since it uses less digits than its factorization.

20535214039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1281050.

The product of its (nonzero) digits is 32400, while the sum is 34.

The spelling of 20535214039 in words is "twenty billion, five hundred thirty-five million, two hundred fourteen thousand, thirty-nine".