19291670420 has 48 divisors (see below), whose sum is σ = 44263473408. Its totient is φ = 7004357760.

The previous prime is 19291670383. The next prime is 19291670449. The reversal of 19291670420 is 2407619291.

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, 76517 + ... + 210803.

It is an arithmetic number, because the mean of its divisors is an integer number (922155696).

Almost surely, 2^19291670420 is an apocalyptic number.

19291670420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19291670420 is an abundant number, since it is smaller than the sum of its proper divisors (24971802988).

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

19291670420 is a wasteful number, since it uses less digits than its factorization.

19291670420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134960 (or 134958 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 41.

The spelling of 19291670420 in words is "nineteen billion, two hundred ninety-one million, six hundred seventy thousand, four hundred twenty".