19631520882742 has 8 divisors (see below), whose sum is σ = 29494853670600. Its totient is φ = 9799902992544.

The previous prime is 19631520882737. The next prime is 19631520882749. The reversal of 19631520882742 is 24728802513691.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×19631520882742² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19631520882749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7928722867 + ... + 7928725342.

It is an arithmetic number, because the mean of its divisors is an integer number (3686856708825).

It is a 2-persistent number, because it is pandigital, and so is 2⋅19631520882742 = 39263041765484, but 3⋅19631520882742 = 58894562648226 is not.

Almost surely, 2^{19631520882742} is an apocalyptic number.

19631520882742 is a deficient number, since it is larger than the sum of its proper divisors (9863332787858).

19631520882742 is a wasteful number, since it uses less digits than its factorization.

19631520882742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15857448830.

The product of its (nonzero) digits is 11612160, while the sum is 58.

The spelling of 19631520882742 in words is "nineteen trillion, six hundred thirty-one billion, five hundred twenty million, eight hundred eighty-two thousand, seven hundred forty-two".