68745219542 has 32 divisors (see below), whose sum is σ = 105564985344. Its totient is φ = 33563452000.

The previous prime is 68745219541. The next prime is 68745219589. The reversal of 68745219542 is 24591254786.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68745219541) 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, 29239667 + ... + 29242017.

It is an arithmetic number, because the mean of its divisors is an integer number (3298905792).

Almost surely, 2^68745219542 is an apocalyptic number.

68745219542 is a deficient number, since it is larger than the sum of its proper divisors (36819765802).

68745219542 is a wasteful number, since it uses less digits than its factorization.

68745219542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3604.

The product of its digits is 4838400, while the sum is 53.

The spelling of 68745219542 in words is "sixty-eight billion, seven hundred forty-five million, two hundred nineteen thousand, five hundred forty-two".