1826661678720 has 256 divisors, whose sum is σ = 5983610659200. Its totient is φ = 473646514176.

The previous prime is 1826661678679. The next prime is 1826661678761. The reversal of 1826661678720 is 278761666281.

It is an interprime number because it is at equal distance from previous prime (1826661678679) and next prime (1826661678761).

It is a Harshad number since it is a multiple of its sum of digits (60).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 126941286 + ... + 126955674.

Almost surely, 2^{1826661678720} is an apocalyptic number.

1826661678720 is a gapful number since it is divisible by the number (10) 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 1826661678720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2991805329600).

1826661678720 is an abundant number, since it is smaller than the sum of its proper divisors (4156948980480).

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

1826661678720 is a wasteful number, since it uses less digits than its factorization.

1826661678720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16235 (or 16223 counting only the distinct ones).

The product of its (nonzero) digits is 16257024, while the sum is 60.

The spelling of 1826661678720 in words is "one trillion, eight hundred twenty-six billion, six hundred sixty-one million, six hundred seventy-eight thousand, seven hundred twenty".