136774667381 has 8 divisors (see below), whose sum is σ = 149211568128. Its totient is φ = 124338240000.

The previous prime is 136774667329. The next prime is 136774667399. The reversal of 136774667381 is 183766477631.

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-136774667381 is a prime.

It is a super-2 number, since 2×136774667381² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 136774667381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136774667311) 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, 786956 + ... + 944906.

It is an arithmetic number, because the mean of its divisors is an integer number (18651446016).

Almost surely, 2^136774667381 is an apocalyptic number.

136774667381 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

136774667381 is a deficient number, since it is larger than the sum of its proper divisors (12436900747).

136774667381 is a wasteful number, since it uses less digits than its factorization.

136774667381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236683.

The product of its digits is 21337344, while the sum is 59.

The spelling of 136774667381 in words is "one hundred thirty-six billion, seven hundred seventy-four million, six hundred sixty-seven thousand, three hundred eighty-one".