81080190035 has 8 divisors (see below), whose sum is σ = 104780553360. Its totient is φ = 59874601824.

The previous prime is 81080190029. The next prime is 81080190041. The reversal of 81080190035 is 53009108018.

It is an interprime number because it is at equal distance from previous prime (81080190029) and next prime (81080190041).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-81080190035 is a prime.

It is a super-2 number, since 2×81080190035² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 81080189977 and 81080190004.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 623693705 + ... + 623693834.

It is an arithmetic number, because the mean of its divisors is an integer number (13097569170).

Almost surely, 2^81080190035 is an apocalyptic number.

81080190035 is a deficient number, since it is larger than the sum of its proper divisors (23700363325).

81080190035 is a wasteful number, since it uses less digits than its factorization.

81080190035 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1247387557.

The product of its (nonzero) digits is 8640, while the sum is 35.

The spelling of 81080190035 in words is "eighty-one billion, eighty million, one hundred ninety thousand, thirty-five".