131077811626 has 8 divisors (see below), whose sum is σ = 196619356260. Its totient is φ = 65538026208.

The previous prime is 131077811603. The next prime is 131077811633. The reversal of 131077811626 is 626118770131.

It can be written as a sum of positive squares in 2 ways, for example, as 130645379601 + 432432025 = 361449^2 + 20795^2 .

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

It is a super-2 number, since 2×131077811626² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

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, 234331 + ... + 563086.

Almost surely, 2^131077811626 is an apocalyptic number.

131077811626 is a deficient number, since it is larger than the sum of its proper divisors (65541544634).

131077811626 is an equidigital number, since it uses as much as digits as its factorization.

131077811626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 879608.

The product of its (nonzero) digits is 84672, while the sum is 43.

The spelling of 131077811626 in words is "one hundred thirty-one billion, seventy-seven million, eight hundred eleven thousand, six hundred twenty-six".