136451799721368 has 48 divisors (see below), whose sum is σ = 369562717414800. Its totient is φ = 45483224337600.

The previous prime is 136451799721351. The next prime is 136451799721511. The reversal of 136451799721368 is 863127997154631.

136451799721368 is a `hidden beast` number, since 1 + 3 + 6 + 4 + 5 + 179 + 97 + 2 + 1 + 368 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a junction number, because it is equal to n+sod(n) for n = 136451799721296 and 136451799721305.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10106988 + ... + 19366331.

It is an arithmetic number, because the mean of its divisors is an integer number (7699223279475).

Almost surely, 2^{136451799721368} is an apocalyptic number.

136451799721368 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

136451799721368 is an abundant number, since it is smaller than the sum of its proper divisors (233110917693432).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

136451799721368 is a wasteful number, since it uses less digits than its factorization.

136451799721368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29537632 (or 29537625 counting only the distinct ones).

The product of its digits is 411505920, while the sum is 72.

The spelling of 136451799721368 in words is "one hundred thirty-six trillion, four hundred fifty-one billion, seven hundred ninety-nine million, seven hundred twenty-one thousand, three hundred sixty-eight".