1071439989048 has 144 divisors (see below), whose sum is σ = 3427859134440. Its totient is φ = 299703456000.

The previous prime is 1071439988977. The next prime is 1071439989079. The reversal of 1071439989048 is 8409899341701.

1071439989048 is a `hidden beast` number, since 1 + 0 + 71 + 439 + 9 + 8 + 90 + 48 = 666.

It is a super-2 number, since 2×1071439989048² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3868603 + ... + 4136298.

Almost surely, 2^{1071439989048} is an apocalyptic number.

1071439989048 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1071439989048 is an abundant number, since it is smaller than the sum of its proper divisors (2356419145392).

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

1071439989048 is a wasteful number, since it uses less digits than its factorization.

1071439989048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8004950 (or 8004930 counting only the distinct ones).

The product of its (nonzero) digits is 15676416, while the sum is 63.

The spelling of 1071439989048 in words is "one trillion, seventy-one billion, four hundred thirty-nine million, nine hundred eighty-nine thousand, forty-eight".