10749542399991 has 6 divisors (see below), whose sum is σ = 15527116800000. Its totient is φ = 7166361599988.

The previous prime is 10749542399951. The next prime is 10749542400011. The reversal of 10749542399991 is 19999324594701.

10749542399991 is a `hidden beast` number, since 1 + 0 + 7 + 49 + 542 + 39 + 9 + 9 + 9 + 1 = 666.

It is not a de Polignac number, because 10749542399991 - 2⁷ = 10749542399863 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10749542399941) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 597196799991 + ... + 597196800008.

It is an arithmetic number, because the mean of its divisors is an integer number (2587852800000).

Almost surely, 2^{10749542399991} is an apocalyptic number.

10749542399991 is a deficient number, since it is larger than the sum of its proper divisors (4777574400009).

10749542399991 is a wasteful number, since it uses less digits than its factorization.

10749542399991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1194393600005 (or 1194393600002 counting only the distinct ones).

The product of its (nonzero) digits is 198404640, while the sum is 72.

It can be divided in two parts, 1074954239999 and 1, that added together give a square (1074954240000 = 1036800²).

The spelling of 10749542399991 in words is "ten trillion, seven hundred forty-nine billion, five hundred forty-two million, three hundred ninety-nine thousand, nine hundred ninety-one".