1987602412332 has 18 divisors (see below), whose sum is σ = 4637750357604. Its totient is φ = 662532509520.

The previous prime is 1987602412307. The next prime is 1987602412391. The reversal of 1987602412332 is 2332142067891.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4680282 + ... + 5087262.

Almost surely, 2^{1987602412332} is an apocalyptic number.

1987602412332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1987602412332 is an abundant number, since it is smaller than the sum of its proper divisors (2650147945272).

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

1987602412332 is an frugal number, since it uses more digits than its factorization.

1987602412332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 813969 (or 406986 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 48.

Multiplying 1987602412332 by its sum of digits (48), we get a square (95404915791936 = 9767544²).

The spelling of 1987602412332 in words is "one trillion, nine hundred eighty-seven billion, six hundred two million, four hundred twelve thousand, three hundred thirty-two".