136778056573 has 8 divisors (see below), whose sum is σ = 136929102336. Its totient is φ = 136627062000.

The previous prime is 136778056543. The next prime is 136778056589. The reversal of 136778056573 is 375650877631.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136778056573 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 (136778056543) 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, 7878883 + ... + 7896223.

It is an arithmetic number, because the mean of its divisors is an integer number (17116137792).

Almost surely, 2^136778056573 is an apocalyptic number.

It is an amenable number.

136778056573 is a deficient number, since it is larger than the sum of its proper divisors (151045763).

136778056573 is a wasteful number, since it uses less digits than its factorization.

136778056573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25595.

The product of its (nonzero) digits is 22226400, while the sum is 58.

The spelling of 136778056573 in words is "one hundred thirty-six billion, seven hundred seventy-eight million, fifty-six thousand, five hundred seventy-three".