20537510942 has 32 divisors (see below), whose sum is σ = 33477403680. Its totient is φ = 9393102720.

The previous prime is 20537510933. The next prime is 20537510969. The reversal of 20537510942 is 24901573502.

It is a junction number, because it is equal to n+sod(n) for n = 20537510896 and 20537510905.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1356092 + ... + 1371152.

It is an arithmetic number, because the mean of its divisors is an integer number (1046168865).

Almost surely, 2^20537510942 is an apocalyptic number.

20537510942 is a deficient number, since it is larger than the sum of its proper divisors (12939892738).

20537510942 is a wasteful number, since it uses less digits than its factorization.

20537510942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15548.

The product of its (nonzero) digits is 75600, while the sum is 38.

The spelling of 20537510942 in words is "twenty billion, five hundred thirty-seven million, five hundred ten thousand, nine hundred forty-two".