68745219507 has 32 divisors (see below), whose sum is σ = 103262208000. Its totient is φ = 45196631424.

The previous prime is 68745219479. The next prime is 68745219527. The reversal of 68745219507 is 70591254786.

68745219507 is a `hidden beast` number, since 6 + 8 + 74 + 52 + 19 + 507 = 666.

It is not a de Polignac number, because 68745219507 - 2⁸ = 68745219251 is a prime.

It is a super-2 number, since 2×68745219507² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68745219527) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 512619 + ... + 632667.

It is an arithmetic number, because the mean of its divisors is an integer number (3226944000).

Almost surely, 2^68745219507 is an apocalyptic number.

68745219507 is a deficient number, since it is larger than the sum of its proper divisors (34516988493).

68745219507 is a wasteful number, since it uses less digits than its factorization.

68745219507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120352 (or 120346 counting only the distinct ones).

The product of its (nonzero) digits is 4233600, while the sum is 54.

The spelling of 68745219507 in words is "sixty-eight billion, seven hundred forty-five million, two hundred nineteen thousand, five hundred seven".