54861796197 has 36 divisors (see below), whose sum is σ = 86005988640. Its totient is φ = 33683790816.

The previous prime is 54861796181. The next prime is 54861796207. The reversal of 54861796197 is 79169716845.

54861796197 is a `hidden beast` number, since 5 + 4 + 8 + 6 + 1 + 7 + 9 + 619 + 7 = 666.

It is not a de Polignac number, because 54861796197 - 2⁴ = 54861796181 is a prime.

It is a super-2 number, since 2×54861796197² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54861796097) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 626638 + ... + 708800.

It is an arithmetic number, because the mean of its divisors is an integer number (2389055240).

Almost surely, 2^54861796197 is an apocalyptic number.

It is an amenable number.

54861796197 is a deficient number, since it is larger than the sum of its proper divisors (31144192443).

54861796197 is a wasteful number, since it uses less digits than its factorization.

54861796197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82634 (or 82618 counting only the distinct ones).

The product of its digits is 22861440, while the sum is 63.

The spelling of 54861796197 in words is "fifty-four billion, eight hundred sixty-one million, seven hundred ninety-six thousand, one hundred ninety-seven".