20619383357 has 8 divisors (see below), whose sum is σ = 22114136160. Its totient is φ = 19165582800.

The previous prime is 20619383353. The next prime is 20619383371. The reversal of 20619383357 is 75338391602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20619383357 - 2² = 20619383353 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20619383353) 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, 10237019 + ... + 10239032.

It is an arithmetic number, because the mean of its divisors is an integer number (2764267020).

Almost surely, 2^20619383357 is an apocalyptic number.

It is an amenable number.

20619383357 is a deficient number, since it is larger than the sum of its proper divisors (1494752803).

20619383357 is a wasteful number, since it uses less digits than its factorization.

20619383357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20476123.

The product of its (nonzero) digits is 816480, while the sum is 47.

The spelling of 20619383357 in words is "twenty billion, six hundred nineteen million, three hundred eighty-three thousand, three hundred fifty-seven".