68090923151061 has 4 divisors (see below), whose sum is σ = 90787897534752. Its totient is φ = 45393948767372.

The previous prime is 68090923151057. The next prime is 68090923151123. The reversal of 68090923151061 is 16015132909086.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 68090923151061 - 2² = 68090923151057 is a prime.

It is a super-2 number, since 2×68090923151061² (a number of 28 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 68090923150995 and 68090923151013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68090923151021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11348487191841 + ... + 11348487191846.

It is an arithmetic number, because the mean of its divisors is an integer number (22696974383688).

Almost surely, 2^{68090923151061} is an apocalyptic number.

It is an amenable number.

68090923151061 is a deficient number, since it is larger than the sum of its proper divisors (22696974383691).

68090923151061 is a wasteful number, since it uses less digits than its factorization.

68090923151061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22696974383690.

The product of its (nonzero) digits is 699840, while the sum is 51.

The spelling of 68090923151061 in words is "sixty-eight trillion, ninety billion, nine hundred twenty-three million, one hundred fifty-one thousand, sixty-one".