19948955796350 has 48 divisors (see below), whose sum is σ = 42413325992448. Its totient is φ = 6838424943840.

The previous prime is 19948955796257. The next prime is 19948955796359. The reversal of 19948955796350 is 5369755984991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19948955796359) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3100154 + ... + 7036253.

It is an arithmetic number, because the mean of its divisors is an integer number (883610958176).

Almost surely, 2^{19948955796350} is an apocalyptic number.

19948955796350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19948955796350 is an abundant number, since it is smaller than the sum of its proper divisors (22464370196098).

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

19948955796350 is a wasteful number, since it uses less digits than its factorization.

19948955796350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10142049 (or 10142044 counting only the distinct ones).

The product of its (nonzero) digits is 3306744000, while the sum is 80.

The spelling of 19948955796350 in words is "nineteen trillion, nine hundred forty-eight billion, nine hundred fifty-five million, seven hundred ninety-six thousand, three hundred fifty".