20534374442 has 16 divisors (see below), whose sum is σ = 31041323712. Its totient is φ = 10187486400.

The previous prime is 20534374423. The next prime is 20534374451. The reversal of 20534374442 is 24447343502.

It is a super-2 number, since 2×20534374442² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20534374396 and 20534374405.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133442 + ... + 242642.

It is an arithmetic number, because the mean of its divisors is an integer number (1940082732).

Almost surely, 2^20534374442 is an apocalyptic number.

20534374442 is a deficient number, since it is larger than the sum of its proper divisors (10506949270).

20534374442 is a wasteful number, since it uses less digits than its factorization.

20534374442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109933.

The product of its (nonzero) digits is 322560, while the sum is 38.

The spelling of 20534374442 in words is "twenty billion, five hundred thirty-four million, three hundred seventy-four thousand, four hundred forty-two".