13400207542 has 4 divisors (see below), whose sum is σ = 20100311316. Its totient is φ = 6700103770.

The previous prime is 13400207461. The next prime is 13400207543. The reversal of 13400207542 is 24570200431.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 13400207542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13400207543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3350051884 + ... + 3350051887.

It is an arithmetic number, because the mean of its divisors is an integer number (5025077829).

Almost surely, 2^13400207542 is an apocalyptic number.

13400207542 is a deficient number, since it is larger than the sum of its proper divisors (6700103774).

13400207542 is an equidigital number, since it uses as much as digits as its factorization.

13400207542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6700103773.

The product of its (nonzero) digits is 6720, while the sum is 28.

Adding to 13400207542 its reverse (24570200431), we get a palindrome (37970407973).

The spelling of 13400207542 in words is "thirteen billion, four hundred million, two hundred seven thousand, five hundred forty-two".