68710551 has 32 divisors (see below), whose sum is σ = 113272320. Its totient is φ = 36077184.

The previous prime is 68710519. The next prime is 68710561. The reversal of 68710551 is 15501786.

It is not a de Polignac number, because 68710551 - 2⁵ = 68710519 is a prime.

It is a super-2 number, since 2×68710551² = 9442279637447202, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68710501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 79560 + ... + 80418.

It is an arithmetic number, because the mean of its divisors is an integer number (3539760).

Almost surely, 2^68710551 is an apocalyptic number.

68710551 is a deficient number, since it is larger than the sum of its proper divisors (44561769).

68710551 is a wasteful number, since it uses less digits than its factorization.

68710551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1175.

The product of its (nonzero) digits is 8400, while the sum is 33.

The square root of 68710551 is about 8289.1827703339. The cubic root of 68710551 is about 409.5822653880.

The spelling of 68710551 in words is "sixty-eight million, seven hundred ten thousand, five hundred fifty-one".