1986203225772 has 48 divisors (see below), whose sum is σ = 5170961510400. Its totient is φ = 659297575440.

The previous prime is 1986203225771. The next prime is 1986203225819. The reversal of 1986203225772 is 2775223026891.

1986203225772 is a `hidden beast` number, since 1 + 9 + 8 + 62 + 0 + 3 + 2 + 2 + 577 + 2 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (1986203225771) 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, 38448604 + ... + 38500227.

It is an arithmetic number, because the mean of its divisors is an integer number (107728364800).

Almost surely, 2^{1986203225772} is an apocalyptic number.

1986203225772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1986203225772 is an abundant number, since it is smaller than the sum of its proper divisors (3184758284628).

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

1986203225772 is a wasteful number, since it uses less digits than its factorization.

1986203225772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76949083 (or 76949075 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 54.

The spelling of 1986203225772 in words is "one trillion, nine hundred eighty-six billion, two hundred three million, two hundred twenty-five thousand, seven hundred seventy-two".