1987562019072 has 144 divisors (see below), whose sum is σ = 6105359256192. Its totient is φ = 562252185600.

The previous prime is 1987562019019. The next prime is 1987562019109. The reversal of 1987562019072 is 2709102657891.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1287273 + ... + 2373224.

It is an arithmetic number, because the mean of its divisors is an integer number (42398328168).

Almost surely, 2^{1987562019072} is an apocalyptic number.

1987562019072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1987562019072 is an abundant number, since it is smaller than the sum of its proper divisors (4117797237120).

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

1987562019072 is a wasteful number, since it uses less digits than its factorization.

1987562019072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3660624 (or 3660610 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 57.

The spelling of 1987562019072 in words is "one trillion, nine hundred eighty-seven billion, five hundred sixty-two million, nineteen thousand, seventy-two".