54845719698 has 48 divisors (see below), whose sum is σ = 139200276384. Its totient is φ = 14245640640.

The previous prime is 54845719693. The next prime is 54845719703. The reversal of 54845719698 is 89691754845.

It is an interprime number because it is at equal distance from previous prime (54845719693) and next prime (54845719703).

It is a super-2 number, since 2×54845719698² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is not an unprimeable number, because it can be changed into a prime (54845719693) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8476315 + ... + 8482782.

It is an arithmetic number, because the mean of its divisors is an integer number (2900005758).

Almost surely, 2^54845719698 is an apocalyptic number.

54845719698 is an abundant number, since it is smaller than the sum of its proper divisors (84354556686).

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

54845719698 is a wasteful number, since it uses less digits than its factorization.

54845719698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16959127 (or 16959120 counting only the distinct ones).

The product of its digits is 87091200, while the sum is 66.

The spelling of 54845719698 in words is "fifty-four billion, eight hundred forty-five million, seven hundred nineteen thousand, six hundred ninety-eight".