19748338347460 has 24 divisors (see below), whose sum is σ = 41749842821400. Its totient is φ = 7846319664384.

The previous prime is 19748338347449. The next prime is 19748338347497. The reversal of 19748338347460 is 6474383384791.

It can be written as a sum of positive squares in 4 ways, for example, as 1038837946756 + 18709500400704 = 1019234^2 + 4325448^2 .

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, 3313476609 + ... + 3313482568.

It is an arithmetic number, because the mean of its divisors is an integer number (1739576784225).

Almost surely, 2^{19748338347460} is an apocalyptic number.

19748338347460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19748338347460 is an abundant number, since it is smaller than the sum of its proper divisors (22001504473940).

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

19748338347460 is a wasteful number, since it uses less digits than its factorization.

19748338347460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6626959335 (or 6626959333 counting only the distinct ones).

The product of its (nonzero) digits is 292626432, while the sum is 67.

The spelling of 19748338347460 in words is "nineteen trillion, seven hundred forty-eight billion, three hundred thirty-eight million, three hundred forty-seven thousand, four hundred sixty".