19710916485 has 16 divisors (see below), whose sum is σ = 33963425664. Its totient is φ = 9703835712.

The previous prime is 19710916469. The next prime is 19710916513. The reversal of 19710916485 is 58461901791.

It is not a de Polignac number, because 19710916485 - 2⁴ = 19710916469 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50540617 + ... + 50541006.

It is an arithmetic number, because the mean of its divisors is an integer number (2122714104).

Almost surely, 2^19710916485 is an apocalyptic number.

19710916485 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

19710916485 is a deficient number, since it is larger than the sum of its proper divisors (14252509179).

19710916485 is a wasteful number, since it uses less digits than its factorization.

19710916485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101081644.

The product of its (nonzero) digits is 544320, while the sum is 51.

The spelling of 19710916485 in words is "nineteen billion, seven hundred ten million, nine hundred sixteen thousand, four hundred eighty-five".