1287632055090 has 32 divisors (see below), whose sum is σ = 3090392222400. Its totient is φ = 343360182464.

The previous prime is 1287632055079. The next prime is 1287632055113. The reversal of 1287632055090 is 905502367821.

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 15 ways as a sum of consecutive naturals, for example, 782461 + ... + 1785359.

It is an arithmetic number, because the mean of its divisors is an integer number (96574756950).

Almost surely, 2^{1287632055090} is an apocalyptic number.

1287632055090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1287632055090 is an abundant number, since it is smaller than the sum of its proper divisors (1802760167310).

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

1287632055090 is a wasteful number, since it uses less digits than its factorization.

1287632055090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1045706.

The product of its (nonzero) digits is 907200, while the sum is 48.

The spelling of 1287632055090 in words is "one trillion, two hundred eighty-seven billion, six hundred thirty-two million, fifty-five thousand, ninety".