544085387391 has 16 divisors (see below), whose sum is σ = 892858072064. Its totient is φ = 286990094304.

The previous prime is 544085387387. The next prime is 544085387449. The reversal of 544085387391 is 193783580445.

It is not a de Polignac number, because 544085387391 - 2² = 544085387387 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (544085387371) 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, 996493111 + ... + 996493656.

It is an arithmetic number, because the mean of its divisors is an integer number (55803629504).

Almost surely, 2^544085387391 is an apocalyptic number.

544085387391 is a deficient number, since it is larger than the sum of its proper divisors (348772684673).

544085387391 is a wasteful number, since it uses less digits than its factorization.

544085387391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1992986790.

The product of its (nonzero) digits is 14515200, while the sum is 57.

The spelling of 544085387391 in words is "five hundred forty-four billion, eighty-five million, three hundred eighty-seven thousand, three hundred ninety-one".