549693507078143 has 16 divisors (see below), whose sum is σ = 570428541903360. Its totient is φ = 529312181112000.

The previous prime is 549693507078137. The next prime is 549693507078169. The reversal of 549693507078143 is 341870705396945.

It is a cyclic number.

It is not a de Polignac number, because 549693507078143 - 2⁸ = 549693507077887 is a prime.

It is a super-2 number, since 2×549693507078143² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (549693507071143) 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, 20529005 + ... + 38997782.

It is an arithmetic number, because the mean of its divisors is an integer number (35651783868960).

Almost surely, 2^{549693507078143} is an apocalyptic number.

549693507078143 is a deficient number, since it is larger than the sum of its proper divisors (20735034825217).

549693507078143 is a wasteful number, since it uses less digits than its factorization.

549693507078143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59529758.

The product of its (nonzero) digits is 685843200, while the sum is 71.

The spelling of 549693507078143 in words is "five hundred forty-nine trillion, six hundred ninety-three billion, five hundred seven million, seventy-eight thousand, one hundred forty-three".