19734681532 has 24 divisors (see below), whose sum is σ = 35008240176. Its totient is φ = 9733120128.

The previous prime is 19734681503. The next prime is 19734681553. The reversal of 19734681532 is 23518643791.

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, 778 + ... + 198670.

It is an arithmetic number, because the mean of its divisors is an integer number (1458676674).

Almost surely, 2^19734681532 is an apocalyptic number.

It is an amenable number.

19734681532 is a deficient number, since it is larger than the sum of its proper divisors (15273558644).

19734681532 is a wasteful number, since it uses less digits than its factorization.

19734681532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198237 (or 198235 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 49.

The spelling of 19734681532 in words is "nineteen billion, seven hundred thirty-four million, six hundred eighty-one thousand, five hundred thirty-two".