13541782742 has 4 divisors (see below), whose sum is σ = 20312674116. Its totient is φ = 6770891370.

The previous prime is 13541782741. The next prime is 13541782753. The reversal of 13541782742 is 24728714531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24728714531 = 2711 ⋅9121621.

It is a junction number, because it is equal to n+sod(n) for n = 13541782693 and 13541782702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13541782741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3385445684 + ... + 3385445687.

It is an arithmetic number, because the mean of its divisors is an integer number (5078168529).

Almost surely, 2^13541782742 is an apocalyptic number.

13541782742 is a deficient number, since it is larger than the sum of its proper divisors (6770891374).

13541782742 is an equidigital number, since it uses as much as digits as its factorization.

13541782742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6770891373.

The product of its digits is 376320, while the sum is 44.

The spelling of 13541782742 in words is "thirteen billion, five hundred forty-one million, seven hundred eighty-two thousand, seven hundred forty-two".