19462368420 has 576 divisors, whose sum is σ = 71482924800. Its totient is φ = 4379443200.

The previous prime is 19462368361. The next prime is 19462368427. The reversal of 19462368420 is 2486326491.

19462368420 is a `hidden beast` number, since 19 + 4 + 623 + 6 + 8 + 4 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (19462368427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 75728932 + ... + 75729188.

It is an arithmetic number, because the mean of its divisors is an integer number (124102300).

Almost surely, 2^19462368420 is an apocalyptic number.

19462368420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19462368420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35741462400).

19462368420 is an abundant number, since it is smaller than the sum of its proper divisors (52020556380).

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

19462368420 is a wasteful number, since it uses less digits than its factorization.

19462368420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377 (or 358 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 45.

The spelling of 19462368420 in words is "nineteen billion, four hundred sixty-two million, three hundred sixty-eight thousand, four hundred twenty".