136778211677528 has 64 divisors (see below), whose sum is σ = 260172095040000. Its totient is φ = 67407277766400.

The previous prime is 136778211677453. The next prime is 136778211677531. The reversal of 136778211677528 is 825776112877631.

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, 118089773 + ... + 119242403.

It is an arithmetic number, because the mean of its divisors is an integer number (4065188985000).

Almost surely, 2^{136778211677528} is an apocalyptic number.

It is an amenable number.

136778211677528 is a deficient number, since it is larger than the sum of its proper divisors (123393883362472).

136778211677528 is a wasteful number, since it uses less digits than its factorization.

136778211677528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1153536 (or 1153532 counting only the distinct ones).

The product of its digits is 331914240, while the sum is 71.

The spelling of 136778211677528 in words is "one hundred thirty-six trillion, seven hundred seventy-eight billion, two hundred eleven million, six hundred seventy-seven thousand, five hundred twenty-eight".