1986250678272 has 672 divisors, whose sum is σ = 6941411568000. Its totient is φ = 567305109504.

The previous prime is 1986250678267. The next prime is 1986250678327. The reversal of 1986250678272 is 2728760526891.

1986250678272 is a `hidden beast` number, since 198 + 62 + 50 + 6 + 78 + 272 = 666.

It is a tau number, because it is divible by the number of its divisors (672).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 682793554 + ... + 682796462.

It is an arithmetic number, because the mean of its divisors is an integer number (10329481500).

Almost surely, 2^{1986250678272} is an apocalyptic number.

1986250678272 is a gapful number since it is divisible by the number (12) 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 1986250678272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3470705784000).

1986250678272 is an abundant number, since it is smaller than the sum of its proper divisors (4955160889728).

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

1986250678272 is an frugal number, since it uses more digits than its factorization.

1986250678272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2971 (or 2921 counting only the distinct ones).

The product of its (nonzero) digits is 40642560, while the sum is 63.

The spelling of 1986250678272 in words is "one trillion, nine hundred eighty-six billion, two hundred fifty million, six hundred seventy-eight thousand, two hundred seventy-two".