68086531 has 8 divisors (see below), whose sum is σ = 69960240. Its totient is φ = 66236928.

The previous prime is 68086517. The next prime is 68086537. The reversal of 68086531 is 13568086.

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-68086531 is a prime.

It is a super-2 number, since 2×68086531² = 9271551407227922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68086537) 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, 226 + ... + 11671.

It is an arithmetic number, because the mean of its divisors is an integer number (8745030).

Almost surely, 2^68086531 is an apocalyptic number.

68086531 is a deficient number, since it is larger than the sum of its proper divisors (1873709).

68086531 is a wasteful number, since it uses less digits than its factorization.

68086531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12053.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 68086531 is about 8251.4562957093. The cubic root of 68086531 is about 408.3385690106.

The spelling of 68086531 in words is "sixty-eight million, eighty-six thousand, five hundred thirty-one".