68724946044 has 72 divisors (see below), whose sum is σ = 180199044480. Its totient is φ = 22902781104.

The previous prime is 68724946039. The next prime is 68724946063. The reversal of 68724946044 is 44064942786.

68724946044 is a `hidden beast` number, since 6 + 8 + 7 + 24 + 9 + 4 + 604 + 4 = 666.

It is a super-2 number, since 2×68724946044² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6840777 + ... + 6850815.

Almost surely, 2^68724946044 is an apocalyptic number.

It is an amenable number.

68724946044 is an abundant number, since it is smaller than the sum of its proper divisors (111474098436).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68724946044 is a wasteful number, since it uses less digits than its factorization.

68724946044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17101 (or 17087 counting only the distinct ones).

The product of its (nonzero) digits is 9289728, while the sum is 54.

The spelling of 68724946044 in words is "sixty-eight billion, seven hundred twenty-four million, nine hundred forty-six thousand, forty-four".