136142012640 has 96 divisors (see below), whose sum is σ = 443635224480. Its totient is φ = 35052652544.

The previous prime is 136142012627. The next prime is 136142012641. The reversal of 136142012640 is 46210241631.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 136142012598 and 136142012607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136142012641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4876239 + ... + 4904078.

It is an arithmetic number, because the mean of its divisors is an integer number (4621200255).

Almost surely, 2^136142012640 is an apocalyptic number.

136142012640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

136142012640 is an abundant number, since it is smaller than the sum of its proper divisors (307493211840).

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

136142012640 is a wasteful number, since it uses less digits than its factorization.

136142012640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9780364 (or 9780356 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The spelling of 136142012640 in words is "one hundred thirty-six billion, one hundred forty-two million, twelve thousand, six hundred forty".