10391988110679 has 48 divisors (see below), whose sum is σ = 17253461272320. Its totient is φ = 5904215856000.

The previous prime is 10391988110671. The next prime is 10391988110723. The reversal of 10391988110679 is 97601188919301.

It is a happy number.

10391988110679 is a `hidden beast` number, since 1 + 0 + 391 + 98 + 81 + 10 + 6 + 79 = 666.

It is not a de Polignac number, because 10391988110679 - 2³ = 10391988110671 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10391988110671) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 78884464 + ... + 79016090.

It is an arithmetic number, because the mean of its divisors is an integer number (359447109840).

Almost surely, 2^{10391988110679} is an apocalyptic number.

10391988110679 is a deficient number, since it is larger than the sum of its proper divisors (6861473161641).

10391988110679 is a wasteful number, since it uses less digits than its factorization.

10391988110679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138820 (or 138817 counting only the distinct ones).

The product of its (nonzero) digits is 5878656, while the sum is 63.

The spelling of 10391988110679 in words is "ten trillion, three hundred ninety-one billion, nine hundred eighty-eight million, one hundred ten thousand, six hundred seventy-nine".