136887500858 has 8 divisors (see below), whose sum is σ = 205334837940. Its totient is φ = 68442554880.

The previous prime is 136887500857. The next prime is 136887500863. The reversal of 136887500858 is 858005788631.

It can be written as a sum of positive squares in 2 ways, for example, as 134471090209 + 2416410649 = 366703^2 + 49157^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×136887500858² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 136887500797 and 136887500806.

It is not an unprimeable number, because it can be changed into a prime (136887500857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 447053 + ... + 688208.

Almost surely, 2^136887500858 is an apocalyptic number.

136887500858 is a deficient number, since it is larger than the sum of its proper divisors (68447337082).

136887500858 is a wasteful number, since it uses less digits than its factorization.

136887500858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1195552.

The product of its (nonzero) digits is 12902400, while the sum is 59.

The spelling of 136887500858 in words is "one hundred thirty-six billion, eight hundred eighty-seven million, five hundred thousand, eight hundred fifty-eight".