136718308201738 has 4 divisors (see below), whose sum is σ = 205077462302610. Its totient is φ = 68359154100868.

The previous prime is 136718308201723. The next prime is 136718308201751. The reversal of 136718308201738 is 837102803817631.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 129696725071809 + 7021583129929 = 11388447^2 + 2649827^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34179577050433 + ... + 34179577050436.

Almost surely, 2^{136718308201738} is an apocalyptic number.

136718308201738 is a deficient number, since it is larger than the sum of its proper divisors (68359154100872).

136718308201738 is an equidigital number, since it uses as much as digits as its factorization.

136718308201738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68359154100871.

The product of its (nonzero) digits is 8128512, while the sum is 58.

The spelling of 136718308201738 in words is "one hundred thirty-six trillion, seven hundred eighteen billion, three hundred eight million, two hundred one thousand, seven hundred thirty-eight".