20486610240 has 112 divisors (see below), whose sum is σ = 68871218112. Its totient is φ = 5141733376.

The previous prime is 20486610239. The next prime is 20486610241. The reversal of 20486610240 is 4201668402.

It is an interprime number because it is at equal distance from previous prime (20486610239) and next prime (20486610241).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20486610241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 611334 + ... + 643973.

Almost surely, 2^20486610240 is an apocalyptic number.

20486610240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20486610240 is an abundant number, since it is smaller than the sum of its proper divisors (48384607872).

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

20486610240 is a wasteful number, since it uses less digits than its factorization.

20486610240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1255344 (or 1255334 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 33.

The spelling of 20486610240 in words is "twenty billion, four hundred eighty-six million, six hundred ten thousand, two hundred forty".