11900719543 has 8 divisors (see below), whose sum is σ = 12097583840. Its totient is φ = 11703912480.

The previous prime is 11900719541. The next prime is 11900719561. The reversal of 11900719543 is 34591700911.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11900719543 - 2¹ = 11900719541 is a prime.

It is a super-2 number, since 2×11900719543² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11900719496 and 11900719505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11900719541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 681718 + ... + 698956.

It is an arithmetic number, because the mean of its divisors is an integer number (1512197980).

Almost surely, 2^11900719543 is an apocalyptic number.

11900719543 is a deficient number, since it is larger than the sum of its proper divisors (196864297).

11900719543 is a wasteful number, since it uses less digits than its factorization.

11900719543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28617.

The product of its (nonzero) digits is 34020, while the sum is 40.

The spelling of 11900719543 in words is "eleven billion, nine hundred million, seven hundred nineteen thousand, five hundred forty-three".