19775877238216 has 32 divisors (see below), whose sum is σ = 40451072215680. Its totient is φ = 8988943057600.

The previous prime is 19775877238181. The next prime is 19775877238283. The reversal of 19775877238216 is 61283277857791.

It is a super-2 number, since 2×19775877238216² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7893270 + ... + 10092346.

It is an arithmetic number, because the mean of its divisors is an integer number (1264096006740).

Almost surely, 2^{19775877238216} is an apocalyptic number.

It is an amenable number.

19775877238216 is an abundant number, since it is smaller than the sum of its proper divisors (20675194977464).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19775877238216 is a wasteful number, since it uses less digits than its factorization.

19775877238216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2301285 (or 2301281 counting only the distinct ones).

The product of its digits is 497871360, while the sum is 73.

The spelling of 19775877238216 in words is "nineteen trillion, seven hundred seventy-five billion, eight hundred seventy-seven million, two hundred thirty-eight thousand, two hundred sixteen".