68761155511 has 8 divisors (see below), whose sum is σ = 71813136384. Its totient is φ = 65714371800.

The previous prime is 68761155431. The next prime is 68761155559. The reversal of 68761155511 is 11555116786.

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

It is not a de Polignac number, because 68761155511 - 2¹⁷ = 68761024439 is a prime.

It is a super-2 number, since 2×68761155511² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68761185511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1272231 + ... + 1325176.

It is an arithmetic number, because the mean of its divisors is an integer number (8976642048).

Almost surely, 2^68761155511 is an apocalyptic number.

68761155511 is a deficient number, since it is larger than the sum of its proper divisors (3051980873).

68761155511 is a wasteful number, since it uses less digits than its factorization.

68761155511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2598581.

The product of its digits is 252000, while the sum is 46.

The spelling of 68761155511 in words is "sixty-eight billion, seven hundred sixty-one million, one hundred fifty-five thousand, five hundred eleven".