136863778740 has 48 divisors (see below), whose sum is σ = 412696935168. Its totient is φ = 33689545344.

The previous prime is 136863778703. The next prime is 136863778757. The reversal of 136863778740 is 47877368631.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87732412 + ... + 87733971.

It is an arithmetic number, because the mean of its divisors is an integer number (8597852816).

Almost surely, 2^136863778740 is an apocalyptic number.

136863778740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

136863778740 is an abundant number, since it is smaller than the sum of its proper divisors (275833156428).

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

136863778740 is a wasteful number, since it uses less digits than its factorization.

136863778740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175466408 (or 175466406 counting only the distinct ones).

The product of its (nonzero) digits is 28449792, while the sum is 60.

The spelling of 136863778740 in words is "one hundred thirty-six billion, eight hundred sixty-three million, seven hundred seventy-eight thousand, seven hundred forty".