135640635068 has 12 divisors (see below), whose sum is σ = 247691594640. Its totient is φ = 64871608032.

The previous prime is 135640635061. The next prime is 135640635101. The reversal of 135640635068 is 860536046531.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135640635061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 737177273 + ... + 737177456.

It is an arithmetic number, because the mean of its divisors is an integer number (20640966220).

Almost surely, 2^135640635068 is an apocalyptic number.

It is an amenable number.

135640635068 is a deficient number, since it is larger than the sum of its proper divisors (112050959572).

135640635068 is a wasteful number, since it uses less digits than its factorization.

135640635068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1474354756 (or 1474354754 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 47.

The spelling of 135640635068 in words is "one hundred thirty-five billion, six hundred forty million, six hundred thirty-five thousand, sixty-eight".