1281262070088 has 1728 divisors, whose sum is σ = 5257148158080. Its totient is φ = 288550563840.

The previous prime is 1281262070069. The next prime is 1281262070117. The reversal of 1281262070088 is 8800702621821.

It is a happy number.

1281262070088 is a `hidden beast` number, since 1 + 2 + 8 + 12 + 620 + 7 + 0 + 0 + 8 + 8 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 431 ways as a sum of consecutive naturals, for example, 2547240445 + ... + 2547240947.

It is an arithmetic number, because the mean of its divisors is an integer number (3042331110).

Almost surely, 2^{1281262070088} is an apocalyptic number.

1281262070088 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1281262070088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2628574079040).

1281262070088 is an abundant number, since it is smaller than the sum of its proper divisors (3975886087992).

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

1281262070088 is a wasteful number, since it uses less digits than its factorization.

1281262070088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 590 (or 556 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 45.

The spelling of 1281262070088 in words is "one trillion, two hundred eighty-one billion, two hundred sixty-two million, seventy thousand, eighty-eight".