20919676952 has 16 divisors (see below), whose sum is σ = 39226096800. Its totient is φ = 10459384480.

The previous prime is 20919676949. The next prime is 20919676991. The reversal of 20919676952 is 25967691902.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 216449 + ... + 297807.

It is an arithmetic number, because the mean of its divisors is an integer number (2451631050).

Almost surely, 2^20919676952 is an apocalyptic number.

It is an amenable number.

20919676952 is a deficient number, since it is larger than the sum of its proper divisors (18306419848).

20919676952 is a wasteful number, since it uses less digits than its factorization.

20919676952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113506 (or 113502 counting only the distinct ones).

The product of its (nonzero) digits is 3674160, while the sum is 56.

The spelling of 20919676952 in words is "twenty billion, nine hundred nineteen million, six hundred seventy-six thousand, nine hundred fifty-two".