54961118594781 has 16 divisors (see below), whose sum is σ = 87391592300544. Its totient is φ = 30040859852784.

The previous prime is 54961118594749. The next prime is 54961118594813. The reversal of 54961118594781 is 18749581116945.

It is an interprime number because it is at equal distance from previous prime (54961118594749) and next prime (54961118594813).

It is not a de Polignac number, because 54961118594781 - 2⁵ = 54961118594749 is a prime.

It is a super-2 number, since 2×54961118594781² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (69).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54961118594981) 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, 56895567421 + ... + 56895568386.

It is an arithmetic number, because the mean of its divisors is an integer number (5461974518784).

Almost surely, 2^{54961118594781} is an apocalyptic number.

It is an amenable number.

54961118594781 is a deficient number, since it is larger than the sum of its proper divisors (32430473705763).

54961118594781 is a wasteful number, since it uses less digits than its factorization.

54961118594781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113791135840.

The product of its digits is 87091200, while the sum is 69.

The spelling of 54961118594781 in words is "fifty-four trillion, nine hundred sixty-one billion, one hundred eighteen million, five hundred ninety-four thousand, seven hundred eighty-one".