68451357 has 16 divisors (see below), whose sum is σ = 103463360. Its totient is φ = 39906432.

The previous prime is 68451337. The next prime is 68451373. The reversal of 68451357 is 75315486.

It is not a de Polignac number, because 68451357 - 2¹⁸ = 68189213 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68451337) 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, 45448 + ... + 46929.

It is an arithmetic number, because the mean of its divisors is an integer number (6466460).

Almost surely, 2^68451357 is an apocalyptic number.

It is an amenable number.

68451357 is a deficient number, since it is larger than the sum of its proper divisors (35012003).

68451357 is a wasteful number, since it uses less digits than its factorization.

68451357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92412.

The product of its digits is 100800, while the sum is 39.

The square root of 68451357 is about 8273.5335256467. The cubic root of 68451357 is about 409.0665996284.

The spelling of 68451357 in words is "sixty-eight million, four hundred fifty-one thousand, three hundred fifty-seven".