20619382242 has 16 divisors (see below), whose sum is σ = 42244588512. Its totient is φ = 6705490080.

The previous prime is 20619382219. The next prime is 20619382261. The reversal of 20619382242 is 24228391602.

It is a self number, because there is not a number n which added to its sum of digits gives 20619382242.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41909068 + ... + 41909559.

It is an arithmetic number, because the mean of its divisors is an integer number (2640286782).

Almost surely, 2^20619382242 is an apocalyptic number.

20619382242 is an abundant number, since it is smaller than the sum of its proper divisors (21625206270).

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

20619382242 is a wasteful number, since it uses less digits than its factorization.

20619382242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83818673.

The product of its (nonzero) digits is 82944, while the sum is 39.

The spelling of 20619382242 in words is "twenty billion, six hundred nineteen million, three hundred eighty-two thousand, two hundred forty-two".