20290384898784 has 384 divisors, whose sum is σ = 79458853340160. Its totient is φ = 4864827340800.

The previous prime is 20290384898767. The next prime is 20290384898809. The reversal of 20290384898784 is 48789848309202.

20290384898784 is a `hidden beast` number, since 2 + 0 + 2 + 90 + 384 + 8 + 9 + 87 + 84 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10865527 + ... + 12595254.

It is an arithmetic number, because the mean of its divisors is an integer number (206924097240).

Almost surely, 2^{20290384898784} is an apocalyptic number.

20290384898784 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20290384898784 is an abundant number, since it is smaller than the sum of its proper divisors (59168468441376).

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

20290384898784 is a wasteful number, since it uses less digits than its factorization.

20290384898784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23460831 (or 23460817 counting only the distinct ones).

The product of its (nonzero) digits is 445906944, while the sum is 72.

The spelling of 20290384898784 in words is "twenty trillion, two hundred ninety billion, three hundred eighty-four million, eight hundred ninety-eight thousand, seven hundred eighty-four".