20514379756 has 12 divisors (see below), whose sum is σ = 38661715792. Its totient is φ = 9468175248.

The previous prime is 20514379751. The next prime is 20514379783. The reversal of 20514379756 is 65797341502.

It is not an unprimeable number, because it can be changed into a prime (20514379751) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 197253600 + ... + 197253703.

Almost surely, 2^20514379756 is an apocalyptic number.

20514379756 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

20514379756 is a deficient number, since it is larger than the sum of its proper divisors (18147336036).

20514379756 is a wasteful number, since it uses less digits than its factorization.

20514379756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394507320 (or 394507318 counting only the distinct ones).

The product of its (nonzero) digits is 1587600, while the sum is 49.

The spelling of 20514379756 in words is "twenty billion, five hundred fourteen million, three hundred seventy-nine thousand, seven hundred fifty-six".