1288881399016 has 16 divisors (see below), whose sum is σ = 2420769587040. Its totient is φ = 643342842480.

The previous prime is 1288881398971. The next prime is 1288881399037. The reversal of 1288881399016 is 6109931888821.

It is a super-2 number, since 2×1288881399016² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137227140 + ... + 137236531.

It is an arithmetic number, because the mean of its divisors is an integer number (151298099190).

Almost surely, 2^{1288881399016} is an apocalyptic number.

It is an amenable number.

1288881399016 is a deficient number, since it is larger than the sum of its proper divisors (1131888188024).

1288881399016 is a wasteful number, since it uses less digits than its factorization.

1288881399016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274464264 (or 274464260 counting only the distinct ones).

The product of its (nonzero) digits is 11943936, while the sum is 64.

The spelling of 1288881399016 in words is "one trillion, two hundred eighty-eight billion, eight hundred eighty-one million, three hundred ninety-nine thousand, sixteen".