20619354608 has 40 divisors (see below), whose sum is σ = 41094515616. Its totient is φ = 10016409600.

The previous prime is 20619354607. The next prime is 20619354647. The reversal of 20619354608 is 80645391602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20619354607) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92885 + ... + 223307.

Almost surely, 2^20619354608 is an apocalyptic number.

It is an amenable number.

20619354608 is a deficient number, since it is larger than the sum of its proper divisors (20475161008).

20619354608 is a wasteful number, since it uses less digits than its factorization.

20619354608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130713 (or 130707 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 44.

The spelling of 20619354608 in words is "twenty billion, six hundred nineteen million, three hundred fifty-four thousand, six hundred eight".