68426351 has 4 divisors (see below), whose sum is σ = 78201552. Its totient is φ = 58651152.

The previous prime is 68426333. The next prime is 68426381. The reversal of 68426351 is 15362486.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15362486 = 2 ⋅7681243.

It is not a de Polignac number, because 68426351 - 2¹⁴ = 68409967 is a prime.

It is a super-2 number, since 2×68426351² = 9364331022350402, which 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 (68426381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4887590 + ... + 4887603.

It is an arithmetic number, because the mean of its divisors is an integer number (19550388).

Almost surely, 2^68426351 is an apocalyptic number.

68426351 is a deficient number, since it is larger than the sum of its proper divisors (9775201).

68426351 is an equidigital number, since it uses as much as digits as its factorization.

68426351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9775200.

The product of its digits is 34560, while the sum is 35.

The square root of 68426351 is about 8272.0221832391. The cubic root of 68426351 is about 409.0167814525.

The spelling of 68426351 in words is "sixty-eight million, four hundred twenty-six thousand, three hundred fifty-one".