13642451512 has 8 divisors (see below), whose sum is σ = 25579596600. Its totient is φ = 6821225752.

The previous prime is 13642451507. The next prime is 13642451513. The reversal of 13642451512 is 21515424631.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×13642451512² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13642451513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 852653212 + ... + 852653227.

It is an arithmetic number, because the mean of its divisors is an integer number (3197449575).

Almost surely, 2^13642451512 is an apocalyptic number.

It is an amenable number.

13642451512 is a deficient number, since it is larger than the sum of its proper divisors (11937145088).

13642451512 is a wasteful number, since it uses less digits than its factorization.

13642451512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1705306445 (or 1705306441 counting only the distinct ones).

The product of its digits is 28800, while the sum is 34.

The spelling of 13642451512 in words is "thirteen billion, six hundred forty-two million, four hundred fifty-one thousand, five hundred twelve".