136421646388534 has 32 divisors (see below), whose sum is σ = 221290889339520. Its totient is φ = 62701712409600.

The previous prime is 136421646388501. The next prime is 136421646388561. The reversal of 136421646388534 is 435883646124631.

It is a super-2 number, since 2×136421646388534² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 772440579 + ... + 772617169.

It is an arithmetic number, because the mean of its divisors is an integer number (6915340291860).

Almost surely, 2^{136421646388534} is an apocalyptic number.

136421646388534 is a deficient number, since it is larger than the sum of its proper divisors (84869242950986).

136421646388534 is a wasteful number, since it uses less digits than its factorization.

136421646388534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300136.

The product of its digits is 238878720, while the sum is 64.

The spelling of 136421646388534 in words is "one hundred thirty-six trillion, four hundred twenty-one billion, six hundred forty-six million, three hundred eighty-eight thousand, five hundred thirty-four".