67323606778454 has 16 divisors (see below), whose sum is σ = 108756738478080. Its totient is φ = 31071513944640.

The previous prime is 67323606778433. The next prime is 67323606778459. The reversal of 67323606778454 is 45487760632376.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67323606778459) 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, 37435919 + ... + 39193050.

It is an arithmetic number, because the mean of its divisors is an integer number (6797296154880).

Almost surely, 2^{67323606778454} is an apocalyptic number.

67323606778454 is a deficient number, since it is larger than the sum of its proper divisors (41433131699626).

67323606778454 is a wasteful number, since it uses less digits than its factorization.

67323606778454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76662775.

The product of its (nonzero) digits is 853493760, while the sum is 68.

The spelling of 67323606778454 in words is "sixty-seven trillion, three hundred twenty-three billion, six hundred six million, seven hundred seventy-eight thousand, four hundred fifty-four".