68473251 has 24 divisors (see below), whose sum is σ = 123312384. Its totient is φ = 35570160.

The previous prime is 68473241. The next prime is 68473291. The reversal of 68473251 is 15237486.

It is not a de Polignac number, because 68473251 - 2¹⁰ = 68472227 is a prime.

It is a super-2 number, since 2×68473251² = 9377172205018002, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68473201) 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 23 ways as a sum of consecutive naturals, for example, 48711 + ... + 50096.

It is an arithmetic number, because the mean of its divisors is an integer number (5138016).

Almost surely, 2^68473251 is an apocalyptic number.

68473251 is a deficient number, since it is larger than the sum of its proper divisors (54839133).

68473251 is a wasteful number, since it uses less digits than its factorization.

68473251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98831 (or 98828 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 68473251 is about 8274.8565546479. The cubic root of 68473251 is about 409.1102079650.

The spelling of 68473251 in words is "sixty-eight million, four hundred seventy-three thousand, two hundred fifty-one".