68646461 has 16 divisors (see below), whose sum is σ = 75957504. Its totient is φ = 61642944.

The previous prime is 68646437. The next prime is 68646463. The reversal of 68646461 is 16464686.

It is not a de Polignac number, because 68646461 - 2⁶ = 68646397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68646463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 172715 + ... + 173111.

It is an arithmetic number, because the mean of its divisors is an integer number (4747344).

Almost surely, 2^68646461 is an apocalyptic number.

It is an amenable number.

68646461 is a deficient number, since it is larger than the sum of its proper divisors (7311043).

68646461 is a wasteful number, since it uses less digits than its factorization.

68646461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 740.

The product of its digits is 165888, while the sum is 41.

The square root of 68646461 is about 8285.3159867322. The cubic root of 68646461 is about 409.4548793565.

The spelling of 68646461 in words is "sixty-eight million, six hundred forty-six thousand, four hundred sixty-one".