1081949679126 has 40 divisors (see below), whose sum is σ = 2551967086680. Its totient is φ = 341668318752.

The previous prime is 1081949679089. The next prime is 1081949679157. The reversal of 1081949679126 is 6219769491801.

1081949679126 is a `hidden beast` number, since 1 + 0 + 8 + 19 + 496 + 7 + 9 + 126 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 175752231 + ... + 175758386.

It is an arithmetic number, because the mean of its divisors is an integer number (63799177167).

Almost surely, 2^{1081949679126} is an apocalyptic number.

1081949679126 is an abundant number, since it is smaller than the sum of its proper divisors (1470017407554).

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

1081949679126 is a wasteful number, since it uses less digits than its factorization.

1081949679126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351510650 (or 351510641 counting only the distinct ones).

The product of its (nonzero) digits is 11757312, while the sum is 63.

The spelling of 1081949679126 in words is "one trillion, eighty-one billion, nine hundred forty-nine million, six hundred seventy-nine thousand, one hundred twenty-six".