20486923380 has 480 divisors, whose sum is σ = 84848746752. Its totient is φ = 4006195200.

The previous prime is 20486923367. The next prime is 20486923393. The reversal of 20486923380 is 8332968402.

20486923380 is a `hidden beast` number, since 2 + 0 + 486 + 92 + 3 + 3 + 80 = 666.

It is an interprime number because it is at equal distance from previous prime (20486923367) and next prime (20486923393).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 2115750 + ... + 2125410.

Almost surely, 2^20486923380 is an apocalyptic number.

20486923380 is a gapful number since it is divisible by the number (20) 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 20486923380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42424373376).

20486923380 is an abundant number, since it is smaller than the sum of its proper divisors (64361823372).

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

20486923380 is a wasteful number, since it uses less digits than its factorization.

20486923380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9717 (or 9706 counting only the distinct ones).

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

The spelling of 20486923380 in words is "twenty billion, four hundred eighty-six million, nine hundred twenty-three thousand, three hundred eighty".