19740631350 has 96 divisors (see below), whose sum is σ = 54649609344. Its totient is φ = 4674297600.

The previous prime is 19740631321. The next prime is 19740631411. The reversal of 19740631350 is 5313604791.

It is a junction number, because it is equal to n+sod(n) for n = 19740631299 and 19740631308.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 68167 + ... + 210066.

It is an arithmetic number, because the mean of its divisors is an integer number (569266764).

Almost surely, 2^19740631350 is an apocalyptic number.

19740631350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19740631350 is an abundant number, since it is smaller than the sum of its proper divisors (34908977994).

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

19740631350 is a wasteful number, since it uses less digits than its factorization.

19740631350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278302 (or 278297 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 39.

The spelling of 19740631350 in words is "nineteen billion, seven hundred forty million, six hundred thirty-one thousand, three hundred fifty".