19706513532 has 24 divisors (see below), whose sum is σ = 46037488896. Its totient is φ = 6560891568.

The previous prime is 19706513527. The next prime is 19706513549. The reversal of 19706513532 is 23531560791.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 982948 + ... + 1002795.

It is an arithmetic number, because the mean of its divisors is an integer number (1918228704).

Almost surely, 2^19706513532 is an apocalyptic number.

19706513532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19706513532 is an abundant number, since it is smaller than the sum of its proper divisors (26330975364).

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

19706513532 is a wasteful number, since it uses less digits than its factorization.

19706513532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1986577 (or 1986575 counting only the distinct ones).

The product of its (nonzero) digits is 170100, while the sum is 42.

The spelling of 19706513532 in words is "nineteen billion, seven hundred six million, five hundred thirteen thousand, five hundred thirty-two".