19739677196712 has 192 divisors, whose sum is σ = 54448165759680. Its totient is φ = 5959174144000.

The previous prime is 19739677196683. The next prime is 19739677196713. The reversal of 19739677196712 is 21769177693791.

It is a super-2 number, since 2×19739677196712² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (19739677196713) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 858123403 + ... + 858146405.

It is an arithmetic number, because the mean of its divisors is an integer number (283584196665).

Almost surely, 2^{19739677196712} is an apocalyptic number.

19739677196712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19739677196712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27224082879840).

19739677196712 is an abundant number, since it is smaller than the sum of its proper divisors (34708488562968).

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

19739677196712 is a wasteful number, since it uses less digits than its factorization.

19739677196712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24136 (or 24121 counting only the distinct ones).

The product of its digits is 378071064, while the sum is 75.

The spelling of 19739677196712 in words is "nineteen trillion, seven hundred thirty-nine billion, six hundred seventy-seven million, one hundred ninety-six thousand, seven hundred twelve".