68625790947 has 60 divisors (see below), whose sum is σ = 117833778480. Its totient is φ = 38989789344.

The previous prime is 68625790913. The next prime is 68625790951. The reversal of 68625790947 is 74909752686.

It is not a de Polignac number, because 68625790947 - 2⁷ = 68625790819 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (68625790147) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 94395498 + ... + 94396224.

It is an arithmetic number, because the mean of its divisors is an integer number (1963896308).

Almost surely, 2^68625790947 is an apocalyptic number.

68625790947 is a deficient number, since it is larger than the sum of its proper divisors (49207987533).

68625790947 is an frugal number, since it uses more digits than its factorization.

68625790947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1702 (or 966 counting only the distinct ones).

The product of its (nonzero) digits is 45722880, while the sum is 63.

The spelling of 68625790947 in words is "sixty-eight billion, six hundred twenty-five million, seven hundred ninety thousand, nine hundred forty-seven".