13640500462 has 4 divisors (see below), whose sum is σ = 20460750696. Its totient is φ = 6820250230.

The previous prime is 13640500399. The next prime is 13640500469. The reversal of 13640500462 is 26400504631.

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

It is a super-3 number, since 3×13640500462³ (a number of 31 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13640500469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3410125114 + ... + 3410125117.

It is an arithmetic number, because the mean of its divisors is an integer number (5115187674).

Almost surely, 2^13640500462 is an apocalyptic number.

13640500462 is a deficient number, since it is larger than the sum of its proper divisors (6820250234).

13640500462 is an equidigital number, since it uses as much as digits as its factorization.

13640500462 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6820250233.

The product of its (nonzero) digits is 17280, while the sum is 31.

The spelling of 13640500462 in words is "thirteen billion, six hundred forty million, five hundred thousand, four hundred sixty-two".