20282317678 has 16 divisors (see below), whose sum is σ = 35509469184. Its totient is φ = 8507476440.

The previous prime is 20282317663. The next prime is 20282317729. The reversal of 20282317678 is 87671328202.

It is a super-2 number, since 2×20282317678² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15411438 + ... + 15412753.

It is an arithmetic number, because the mean of its divisors is an integer number (2219341824).

Almost surely, 2^20282317678 is an apocalyptic number.

20282317678 is a deficient number, since it is larger than the sum of its proper divisors (15227151506).

20282317678 is a wasteful number, since it uses less digits than its factorization.

20282317678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30824247.

The product of its (nonzero) digits is 451584, while the sum is 46.

The spelling of 20282317678 in words is "twenty billion, two hundred eighty-two million, three hundred seventeen thousand, six hundred seventy-eight".