136961685079 has 16 divisors (see below), whose sum is σ = 150608494080. Its totient is φ = 123971459040.

The previous prime is 136961685017. The next prime is 136961685127. The reversal of 136961685079 is 970586169631.

It is a cyclic number.

It is not a de Polignac number, because 136961685079 - 2²¹ = 136959587927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136961635079) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 210949 + ... + 564289.

It is an arithmetic number, because the mean of its divisors is an integer number (9413030880).

Almost surely, 2^136961685079 is an apocalyptic number.

136961685079 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

136961685079 is a deficient number, since it is larger than the sum of its proper divisors (13646809001).

136961685079 is a wasteful number, since it uses less digits than its factorization.

136961685079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354270.

The product of its (nonzero) digits is 14696640, while the sum is 61.

The spelling of 136961685079 in words is "one hundred thirty-six billion, nine hundred sixty-one million, six hundred eighty-five thousand, seventy-nine".