19838861537352 has 128 divisors (see below), whose sum is σ = 58269520834560. Its totient is φ = 5549185624320.

The previous prime is 19838861537309. The next prime is 19838861537359. The reversal of 19838861537352 is 25373516883891.

It is not an unprimeable number, because it can be changed into a prime (19838861537359) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 244753743 + ... + 244834785.

It is an arithmetic number, because the mean of its divisors is an integer number (455230631520).

Almost surely, 2^{19838861537352} is an apocalyptic number.

19838861537352 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19838861537352 is an abundant number, since it is smaller than the sum of its proper divisors (38430659297208).

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

19838861537352 is a wasteful number, since it uses less digits than its factorization.

19838861537352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152403 (or 152399 counting only the distinct ones).

The product of its digits is 261273600, while the sum is 69.

The spelling of 19838861537352 in words is "nineteen trillion, eight hundred thirty-eight billion, eight hundred sixty-one million, five hundred thirty-seven thousand, three hundred fifty-two".