136490479986959 has 4 divisors (see below), whose sum is σ = 155989119985104. Its totient is φ = 116991839988816.

The previous prime is 136490479986947. The next prime is 136490479987003. The reversal of 136490479986959 is 959689974094631.

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

It is a cyclic number.

It is not a de Polignac number, because 136490479986959 - 2¹⁶ = 136490479921423 is a prime.

It is a super-2 number, since 2×136490479986959² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136490479986659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9749319999062 + ... + 9749319999075.

It is an arithmetic number, because the mean of its divisors is an integer number (38997279996276).

Almost surely, 2^{136490479986959} is an apocalyptic number.

136490479986959 is a deficient number, since it is larger than the sum of its proper divisors (19498639998145).

136490479986959 is an equidigital number, since it uses as much as digits as its factorization.

136490479986959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19498639998144.

The product of its (nonzero) digits is 28570268160, while the sum is 89.

The spelling of 136490479986959 in words is "one hundred thirty-six trillion, four hundred ninety billion, four hundred seventy-nine million, nine hundred eighty-six thousand, nine hundred fifty-nine".