136538623870 has 16 divisors (see below), whose sum is σ = 268112207088. Its totient is φ = 49650408640.

The previous prime is 136538623799. The next prime is 136538623889. The reversal of 136538623870 is 78326835631.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 620629999 + ... + 620630218.

It is an arithmetic number, because the mean of its divisors is an integer number (16757012943).

Almost surely, 2^136538623870 is an apocalyptic number.

136538623870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

136538623870 is a deficient number, since it is larger than the sum of its proper divisors (131573583218).

136538623870 is a wasteful number, since it uses less digits than its factorization.

136538623870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1241260235.

The product of its (nonzero) digits is 4354560, while the sum is 52.

The spelling of 136538623870 in words is "one hundred thirty-six billion, five hundred thirty-eight million, six hundred twenty-three thousand, eight hundred seventy".