20406769354 has 16 divisors (see below), whose sum is σ = 31323656448. Its totient is φ = 9966414832.

The previous prime is 20406769351. The next prime is 20406769379. The reversal of 20406769354 is 45396760402.

It is not an unprimeable number, because it can be changed into a prime (20406769351) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168517 + ... + 263080.

It is an arithmetic number, because the mean of its divisors is an integer number (1957728528).

Almost surely, 2^20406769354 is an apocalyptic number.

20406769354 is a deficient number, since it is larger than the sum of its proper divisors (10916887094).

20406769354 is a wasteful number, since it uses less digits than its factorization.

20406769354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432149.

The product of its (nonzero) digits is 1088640, while the sum is 46.

The spelling of 20406769354 in words is "twenty billion, four hundred six million, seven hundred sixty-nine thousand, three hundred fifty-four".