20275340378 has 16 divisors (see below), whose sum is σ = 31496365824. Its totient is φ = 9778682880.

The previous prime is 20275340359. The next prime is 20275340389. The reversal of 20275340378 is 87304357202.

It is a super-2 number, since 2×20275340378² (a number of 21 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 513575 + ... + 551642.

It is an arithmetic number, because the mean of its divisors is an integer number (1968522864).

Almost surely, 2^20275340378 is an apocalyptic number.

20275340378 is a deficient number, since it is larger than the sum of its proper divisors (11221025446).

20275340378 is a wasteful number, since it uses less digits than its factorization.

20275340378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1065557.

The product of its (nonzero) digits is 282240, while the sum is 41.

The spelling of 20275340378 in words is "twenty billion, two hundred seventy-five million, three hundred forty thousand, three hundred seventy-eight".