19785323701 has 32 divisors (see below), whose sum is σ = 24120391680. Its totient is φ = 15988190400.

The previous prime is 19785323699. The next prime is 19785323731. The reversal of 19785323701 is 10732358791.

It is not a de Polignac number, because 19785323701 - 2¹ = 19785323699 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19785323731) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 413920 + ... + 459238.

It is an arithmetic number, because the mean of its divisors is an integer number (753762240).

Almost surely, 2^19785323701 is an apocalyptic number.

19785323701 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

19785323701 is a deficient number, since it is larger than the sum of its proper divisors (4335067979).

19785323701 is a wasteful number, since it uses less digits than its factorization.

19785323701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45457.

The product of its (nonzero) digits is 317520, while the sum is 46.

The spelling of 19785323701 in words is "nineteen billion, seven hundred eighty-five million, three hundred twenty-three thousand, seven hundred one".