2686498920 has 512 divisors, whose sum is σ = 10990080000. Its totient is φ = 570074112.

The previous prime is 2686498891. The next prime is 2686498943. The reversal of 2686498920 is 298946862.

It is a happy number.

2686498920 is a `hidden beast` number, since 2 + 68 + 6 + 498 + 92 + 0 = 666.

It is a super-2 number, since 2×2686498920² = 14434552894322332800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 8474602 + ... + 8474918.

It is an arithmetic number, because the mean of its divisors is an integer number (21465000).

Almost surely, 2^2686498920 is an apocalyptic number.

2686498920 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 2686498920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5495040000).

2686498920 is an abundant number, since it is smaller than the sum of its proper divisors (8303581080).

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

2686498920 is a wasteful number, since it uses less digits than its factorization.

2686498920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422 (or 412 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 54.

The square root of 2686498920 is about 51831.4472111285. The cubic root of 2686498920 is about 1390.1517906109.

The spelling of 2686498920 in words is "two billion, six hundred eighty-six million, four hundred ninety-eight thousand, nine hundred twenty".