19487379419420 has 48 divisors (see below), whose sum is σ = 45486150823008. Its totient is φ = 6952615637760.

The previous prime is 19487379419411. The next prime is 19487379419477. The reversal of 19487379419420 is 2491497378491.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 835639259 + ... + 835662578.

It is an arithmetic number, because the mean of its divisors is an integer number (947628142146).

Almost surely, 2^{19487379419420} is an apocalyptic number.

19487379419420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19487379419420 is an abundant number, since it is smaller than the sum of its proper divisors (25998771403588).

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

19487379419420 is a wasteful number, since it uses less digits than its factorization.

19487379419420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1671301910 (or 1671301908 counting only the distinct ones).

The product of its (nonzero) digits is 109734912, while the sum is 68.

The spelling of 19487379419420 in words is "nineteen trillion, four hundred eighty-seven billion, three hundred seventy-nine million, four hundred nineteen thousand, four hundred twenty".