136623462621 has 8 divisors (see below), whose sum is σ = 191752228320. Its totient is φ = 86288502672.

The previous prime is 136623462587. The next prime is 136623462643. The reversal of 136623462621 is 126264326631.

It is a happy number.

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

It is not a de Polignac number, because 136623462621 - 2¹⁴ = 136623446237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136623462421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1198451370 + ... + 1198451483.

It is an arithmetic number, because the mean of its divisors is an integer number (23969028540).

Almost surely, 2^136623462621 is an apocalyptic number.

It is an amenable number.

136623462621 is a deficient number, since it is larger than the sum of its proper divisors (55128765699).

136623462621 is a wasteful number, since it uses less digits than its factorization.

136623462621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2396902875.

The product of its digits is 373248, while the sum is 42.

The spelling of 136623462621 in words is "one hundred thirty-six billion, six hundred twenty-three million, four hundred sixty-two thousand, six hundred twenty-one".